CN102577933A - Method for breeding indica sterile line-japonica restorer line intersubspecific hybrid rice and application of method - Google Patents
Method for breeding indica sterile line-japonica restorer line intersubspecific hybrid rice and application of method Download PDFInfo
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Abstract
The invention discloses a method for breeding indica sterile line-japonica restorer line intersubspecific hybrid rice. A hybridization polymerization and testcross screening alternate progressive breeding method is utilized according to a breeding target; a japonica type widely compatible restorer line in which a wide compatibility gene, a male sterile cytoplasmic restorer gene and multiple kinds of functional genes are polymerized is bred by integrating various breeding technologies; when an indica-japonica intersubspecific hybrid rice combination is prepared by using the japonica type widely compatible restorer line, an indica three-line sterile line and an indica two-line sterile line, the problems that first generation of indica-japonica hybrid is low in yield, high in plant, long in growth period and low in grain plumpness can be effectively solved; an effective breeding way and an effective breeding method are provided for breeding indica-japonica hybrid rice which directly utilizes powerful intersubspecific hybrid advantages; and the method is applied in the field of the research on the utilization of intersubspecific hybrid advantages of rice three-line and two-line methods.
Description
Technical field
The present invention relates to paddy rice cross breeding breeding field, be specifically related to the not extensive inter-subspecies hybrid rice selection of round-grained rice of Xian,
The inventive method is applicable to that paddy rice three line method, two is the seed selection of method Hybrids of Indica and Japonica rice.
Background technology
At present; Hybrid rice the year of China popularizing area more than 13,000,000 hectares, but hybrid rice combination almost all belongs to the intervarietal cross rice, and the utilization of rice heterosis still is in by utilizing rice varieties species hybrid advantage; To partly, the indirect paddy rice inter-subspecific heterosis step transition of utilizing; Output is further improved, must more directly, comprehensively utilize the paddy rice inter-subspecific heterosis in other words conj.or perhaps, this has become rice breeding man's common recognition.Because it is very big that seed selection can practical strong advantage Hybrids of Indica and Japonica rice be combined in technical difficulty; Mainly be must solve simultaneously that indica-japonica hybrid generation ripening rate is low, plant is too high, breeding time is oversize and a difficult problem such as the seed circularity is bad, the direct utilization of paddy rice inter-subspecific heterosis does not obtain breakthrough for a long time.
It is two types of methods that hybrid rice has three line method and two; Pluses and minuses are respectively arranged: two line method has the three big advantages that combo is free, the seed production routine is simple, can avoid the sterile cytoplasm unification; But because the breeding and the production of hybrid seeds of the quick caryon sterile line of light (temperature) are restricted by space-time conditions such as illumination, temperature; There are uncertain risk factors, higher to the specification requirement of the breeding and the production of hybrid seeds than three line method.Up to the present, Three-line Hybrid rice and two is the state that the method hybrid rice is still a coexistence on producing.
The Xian not extensive inter-subspecies hybrid rice seed selection of round-grained rice is to heterotic comparatively comprehensive, directly utilization powerful between indica and japonica subspecies; Theoretically; As long as the wide compatibility gene that can overcome Xian, the not affine hybrid dysgenesis that causes of round-grained rice subspecies with can recover male sterile that sterile cytoplasm causes and recover gene pyramiding and recover in the system to the round-grained rice type; With long-grained nonglutinous rice male sterile line (A or S) combo seed selection, just can realize simultaneously that three line method, two is the direct utilization of method subspecies indica and japonica hybrid advantage again.But not in the breeding production operation process of the extensive inter-subspecies hybrid rice of round-grained rice, find still to have many difficult problems to need to solve at the practical Xian of seed selection.
Summary of the invention
The method that the purpose of this invention is to provide the practical Hybrids of Indica and Japonica rice of a kind of seed selection; Be to be on the basis of method breeding at paddy rice three line method and two; Structure can directly utilize powerful heterotic breeding system between the paddy rice indica and japonica subspecies; For seed selection subspecies super hybridized rice provides effective breeding approach and method, and cultivate and newly to make up by practical inter-subspecies hybrid rice.
The technology path of long-grained nonglutinous rice male sterile line (A or S)/round-grained rice type wide-congenial restoring line (R) for research adopted in research, is called for short " Xian not/round-grained rice is extensive " this group mode.Main key technology is the seed selection to round-grained rice type wide-congenial restoring line.
The technical scheme that adopts for the present invention of realization above-mentioned purpose is following:
Xian is the extensive inter-subspecies hybrid rice selection of round-grained rice not, it is characterized in that, specifically may further comprise the steps:
(1) solves the low difficult problem with seed circularity difference of indica-japonica hybrid F1 ripening rate, breed
phase round-grained rice type wide-congenial restoring line;
Adopting wide affine kind 02428, lemont and japonica rice to recover is that the C fort carries out multiple cross; F4 begins from its segregative generation; Carry out widely test cross in pairs with long-grained nonglutinous rice male sterile line Long Tefu A; Ripening rate and circularity information according to test cross F1 feedback; Centering selection material is selected, and follows the tracks of testcross and screening from generation to generation through many, by F10 for breeding stable
phase round-grained rice type wide-congenial restoring line-round-grained rice R518 in the strain based material;
(2) so that
phase round-grained rice type wide-congenial restoring line-round-grained rice R518 is a basic material; Adopt the weak middle round-grained rice strain 0416 of the strong photosensitivity of response to temperature (come from hybrid combination town rice 5262/ nasal mucus rice No. 8 stable article based material of F11 generation) that round-grained rice R518 is improved; Prepared round-grained rice 0416//round-grained rice R518 combination among round-grained rice 0416 among the round-grained rice R518/, the round-grained rice R518/; Being utilized in Sanya, Hainan adds generation of breeding in generation selected material is carried out the photosensitivity screening; Eliminate because the strong and precocious material of photosensitivity; Keep response to temperature strong in ripe wood material late; And proceed the testcross and screening with long-grained nonglutinous rice male sterile line Long Tefu A; Through the seed selection in many generations, by the F9 of round-grained rice 0416 hybrid combination among the round-grained rice R518/ for
the phase round-grained rice type wide-congenial restoring line-round-grained rice R1130 that breeds in the strain system a little less than the strong photosensitivity of response to temperature;
(3) solve indica-japonica hybrid F1 and be prone to the characteristic that shattering, grain type fall short of; And the economical character of
phase round-grained rice type wide-congenial restoring line improved, breed
phase round-grained rice type wide-congenial restoring line:
Adopt long grain round-grained rice 022 (coming from the stable article based material of F13 generation of the excellent 422/R161 of hybrid combination nasal mucus) that
phase round-grained rice type wide-congenial restoring line-round-grained rice R1130 is improved; Hybrid combinations such as the long grain of round-grained rice R1130/ round-grained rice 022, the long grain of round-grained rice R1130/ round-grained rice 022//round-grained rice R1130 have been prepared; Proceed screening of sensitization response to temperature and testcross and screening work at segregative generation; And to being selected in the tracking selection that material carries out seed holding and grain length; Obtain
phase round-grained rice type wide-congenial restoring line-round-grained rice R1217 at the F10 of the long grain of round-grained rice R1130/ round-grained rice 022//round-grained rice R1130 hybrid combination in for material; It has long grain type and suitable seed holding, meets the requirement of hybridization long-grained nonglutinous rice growing area;
(4) the plant problem of too of solution indica-japonica hybrid F1, breed
phase round-grained rice type wide-congenial restoring line:
Described Xian is the application of the extensive inter-subspecies hybrid rice selection of round-grained rice not, it is characterized in that: the inventive method can be applied in the seed selection that paddy rice three line method, two is a method Hybrids of Indica and Japonica rice.
Beneficial effect of the present invention:
The present invention is owing to combine multinomial rice variety selective technology; The round-grained rice type of seed selection recover system can be simultaneously and three be, two be that the long-grained nonglutinous rice male sterile line makes to produce and goes up practical Hybrids of Indica and Japonica rice combination; Make the powerful hybrid vigour of paddy rice subspecies be able to comparatively comprehensively, directly utilize,, effective technical means is provided for further improving rice yield; The present invention is scientific and reasonable, and practicality is good.
Description of drawings
Fig. 1 is the not extensive inter-subspecies hybrid rice selection of a round-grained rice flow chart of Xian.
Specific embodiments
Embodiment:
1. solve the low difficult problem with seed circularity difference of indica-japonica hybrid F1 ripening rate, breed
phase round-grained rice type wide-congenial restoring line.
Adopting wide affine kind 02428, lemont and japonica rice to recover is that the C fort carries out multiple cross (02428//Lemont/C fort); F4 begins from its segregative generation; Carry out widely test cross in pairs with WA type long-grained nonglutinous rice male sterile line Long Tefu A; Ripening rate and circularity information according to test cross F1 feedback; Centering selection material is selected; Through many testcross and screenings of following the tracks of from generation to generation; By F10 for breeding stable
phase round-grained rice type wide-congenial restoring line-round-grained rice R518 in the strain based material; The ripening rate that long-grained nonglutinous rice male sterile lines such as warp test round-grained rice R518 and Zhenshan 97a,
-32A, Long Tefu A are joined indica-japonica hybrid F1 is all more than 80%; And circularity is good, and thousand kernel weight is at 26-28 grams, effectively solves the low problem (seeing table 1) with seed circularity difference of indica-japonica hybrid F1 ripening rate.
2. solve long partially difficult problem indica-japonica hybrid F1 breeding time, breed
phase round-grained rice type wide-congenial restoring line.
So that
phase round-grained rice type wide-congenial restoring line-round-grained rice R518 is a basic material; To cause indica-japonica hybrid F1 breeding time long partially main cause be since father and mother this on photosensitivity and response to temperature, have notable difference, adopt the weak middle round-grained rice strain 0416 of the strong photosensitivity of response to temperature (F11 that comes from hybrid combination town rice 5262/ nasal mucus rice No. 8 is for stablizing strain) that round-grained rice R518 is improved.Prepared combination such as round-grained rice 0416//round-grained rice R518 among round-grained rice 0416 among the round-grained rice R518/, the round-grained rice R518/; Being utilized in Sanya, Hainan adds generation of breeding in generation selected material is carried out the photosensitivity screening; Eliminate because the strong and precocious material of photosensitivity; Keep response to temperature strong in ripe wood material late; And proceed the testcross and screening with long-grained nonglutinous rice male sterile line Long Tefu A; Through the seed selection in many generations, by the F9 of round-grained rice 0416 hybrid combination among the round-grained rice R518/ for breeding
phase round-grained rice type wide-congenial restoring line-round-grained rice R1130 in the strain system., through test round-grained rice R1130 and most long-grained nonglutinous rice two be male sterile line with long-grained nonglutinous rice three partly be male sterile line during in the combination of preparation indica and japonica subspecies breeding time overlength not, solved oversize problem (seeing table 2) indica-japonica hybrid F1 breeding time basically.
3. solve indica-japonica hybrid F1 and be prone to the characteristic that shattering, grain type fall short of; And the economical character of
phase round-grained rice type wide-congenial restoring line improved, breed
phase round-grained rice type wide-congenial restoring line.
Should have suitable seed holding and the requirement of long grain type to the hybridization long-grained nonglutinous rice combination of using at the long-grained nonglutinous rice growing area; Adopt long grain round-grained rice 022 (F13 that comes from the excellent 422/R161 of hybrid combination nasal mucus is for stablizing strain) material that
phase round-grained rice type wide-congenial restoring line-round-grained rice R1130 is improved; Hybrid combinations such as the long grain of round-grained rice R1130/ round-grained rice 022, the long grain of round-grained rice R1130/ round-grained rice 022//round-grained rice R1130 have been prepared; Proceed screening of sensitization response to temperature and testcross and screening work at segregative generation; And the tracking that selected material carries out seed holding and grain length selected, the F10 of the long grain of round-grained rice R1130/ round-grained rice 022//round-grained rice R1130 hybrid combination for material in acquisition
phase round-grained rice type wide-congenial restoring line-round-grained rice R1217.Round-grained rice R1217 has long grain type and suitable seed holding; And thousand kernel weight reaches 31 grams; Economical character is good; R1217 has kept the original function of
phase round-grained rice type wide-congenial restoring line (round-grained rice R1130) through the test round-grained rice; And with the subspecies indica and japonica hybrid that round-grained rice R1217 is joined have suitable seed holding, the grain type is long, meets the requirement (seeing table 3) of hybridizing the long-grained nonglutinous rice growing area.
4. solve the plant problem of too of indica-japonica hybrid F1, breed
phase round-grained rice type wide-congenial restoring line.
Plant height reaches 135-145 centimetres under the high fertile condition because III phase round-grained rice type wide-congenial restoring line-plant height of round-grained rice R1217 own at 115-120 centimetres, is combined between the indica and japonica subspecies of preparation, and lodging resistance is poor.In order to strengthen the lodging resistance of indica-japonica hybrid, reducing the plant height that recovers system is an available method.(round-grained rice R1217 and sister system thereof) is basic seed selection material with
phase round-grained rice type wide-congenial restoring line; Enlarging strain is cultivated area; Plant under the multiple soil fertility condition; To screen than the obvious short material of round-grained rice R1217 plant height; And with the fragrant A test cross in long-grained nonglutinous rice male sterile line Jiangxi; Do to follow the tracks of seed selection according to test cross F1; Finally breed
phase round-grained rice type wide-congenial restoring line (represent strain round-grained rice R321, round-grained rice R468, round-grained rice R206 arranged) shorter 10-15 centimeters, reached with long-grained nonglutinous rice male sterile line preparation Hybrids of Indica and Japonica rice through
phase round-grained rice type wide-congenial restoring lines such as test round-grained rice R321 and produced the requirement (seeing table 4) of going up practicality than round-grained rice R1217.
Table 1 round-grained rice R518 and Xian, round-grained rice male sterile line test cross F1 ripening rate, thousand kernel weight and the performance of seed circularity
Table 2: round-grained rice R1130 and long-grained nonglutinous rice male sterile line test cross F1 breeding time and ripening rate performance
| ? | Happy fragrant 202A | Bright 3A | Long Tefu A | Train short 64S | Extensively account for 63S |
| Full fertility (d) | 122.0 | 120.5 | 118.5 | 118.0 | 129.5 |
| Ripening rate (%) | 83.1 | 81.5 | 85.7 | 88.5 | 91.2 |
Table 3: round-grained rice R1217 and long-grained nonglutinous rice male sterile line test cross F1 seed aspect ratio and seed holding performance
| ? | Happy fragrant 202A | The fragrant A in Jiangxi | The rich A of paddy | Train short 64S | Extensively account for 63S |
| The seed aspect ratio | 3.0 | 2.9 | 2.7 | 3.0 | 3.0 |
| Seed holding | Medium | Medium | Medium | Medium | Medium |
Table 4: Indica-Japonica Hybrid Rice combination economical character performance
Claims (2)
1. the Xian extensive inter-subspecies hybrid rice selection of round-grained rice not is characterized in that, specifically may further comprise the steps:
(1) adopting wide affine kind 02428, lemont is that the C fort carries out multiple cross with the japonica rice recovery; F4 begins from its segregative generation; Carry out widely test cross in pairs with long-grained nonglutinous rice male sterile line Long Tefu A; Ripening rate and circularity information according to test cross F1 feedback; Centering selection material is selected; From generation to generation follows the tracks of testcross and screening through many, by F10 for breeding stable
phase round-grained rice type wide-congenial restoring line-round-grained rice R518 in the strain based material;
(2) so that
phase round-grained rice type wide-congenial restoring line-round-grained rice R518 is a basic material; Adopt the weak middle round-grained rice strain 0416 of the strong photosensitivity of response to temperature (come from hybrid combination town rice 5262/ nasal mucus rice No. 8 stable article based material of F11 generation) that round-grained rice R518 is improved; Prepared round-grained rice 0416//round-grained rice R518 combination among round-grained rice 0416 among the round-grained rice R518/, the round-grained rice R518/; Being utilized in Sanya, Hainan adds generation of breeding in generation selected material is carried out the photosensitivity screening; Eliminate because the strong and precocious material of photosensitivity; Keep response to temperature strong in ripe wood material late; And proceed the testcross and screening with long-grained nonglutinous rice male sterile line Long Tefu A; Through the seed selection in many generations, by the F9 of round-grained rice 0416 hybrid combination among the round-grained rice R518/ for
the phase round-grained rice type wide-congenial restoring line-round-grained rice R1130 that breeds in the strain system a little less than the strong photosensitivity of response to temperature;
(3) adopt long grain round-grained rice 022 (coming from the stable article based material of F13 generation of the excellent 422/R161 of hybrid combination nasal mucus) that
phase round-grained rice type wide-congenial restoring line-round-grained rice R1130 is improved; Hybrid combinations such as the long grain of round-grained rice R1130/ round-grained rice 022, the long grain of round-grained rice R1130/ round-grained rice 022//round-grained rice R1130 have been prepared; Proceed screening of sensitization response to temperature and testcross and screening work at segregative generation; And to being selected in the tracking selection that material carries out seed holding and grain length; Obtain
phase round-grained rice type wide-congenial restoring line-round-grained rice R1217 at the F10 of the long grain of round-grained rice R1130/ round-grained rice 022//round-grained rice R1130 hybrid combination in for material; It has long grain type and suitable seed holding, meets the requirement of hybridization long-grained nonglutinous rice growing area;
(4)
the phase round-grained rice type wide-congenial restoring line with step (3) seed selection is basic seed selection material; Enlarging strain is cultivated area; Plant under the multiple soil fertility condition; Screen strain based material of short stem; And, finally breed
phase round-grained rice type wide-congenial restoring line of short stem with the fragrant A test cross in long-grained nonglutinous rice male sterile line Jiangxi.
2. Xian as claimed in claim 1 is the application of the extensive inter-subspecies hybrid rice selection of round-grained rice not, it is characterized in that: the inventive method can be applied in the seed selection that paddy rice three line method, two is a method Hybrids of Indica and Japonica rice.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103461093A (en) * | 2013-08-14 | 2013-12-25 | 江苏丘陵地区镇江农业科学研究所 | Intersubspecific indica type three-line hybrid rice restorer line breeding method |
| CN103571869A (en) * | 2012-07-21 | 2014-02-12 | 复旦大学 | Method for improving fertility of indica-japonica rice hybrids by virtue of LRK1 gene transformation |
| CN104521758A (en) * | 2015-01-04 | 2015-04-22 | 安徽袁粮水稻产业有限公司 | New breeding method for resisting rice blast through indica-japonica hybrid gene introgression |
| CN113661916A (en) * | 2021-06-29 | 2021-11-19 | 高邮周邶墩农业发展有限公司 | Breeding method of long-grain indica-japonica intermediate wide-affinity restorer line |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103571869A (en) * | 2012-07-21 | 2014-02-12 | 复旦大学 | Method for improving fertility of indica-japonica rice hybrids by virtue of LRK1 gene transformation |
| CN103571869B (en) * | 2012-07-21 | 2016-12-21 | 复旦大学 | A kind of method utilizing LRK1 gene transformation to improve Indica-Japonica rice hybrid fertility |
| CN103461093A (en) * | 2013-08-14 | 2013-12-25 | 江苏丘陵地区镇江农业科学研究所 | Intersubspecific indica type three-line hybrid rice restorer line breeding method |
| CN103461093B (en) * | 2013-08-14 | 2015-09-02 | 江苏丘陵地区镇江农业科学研究所 | A kind of breeding method of subspecies Indica Three Line Restorer |
| CN104521758A (en) * | 2015-01-04 | 2015-04-22 | 安徽袁粮水稻产业有限公司 | New breeding method for resisting rice blast through indica-japonica hybrid gene introgression |
| CN104521758B (en) * | 2015-01-04 | 2017-03-29 | 安徽袁粮水稻产业有限公司 | A kind of Xian Jing hand over gene introgression blast resisting breeding new method |
| CN113661916A (en) * | 2021-06-29 | 2021-11-19 | 高邮周邶墩农业发展有限公司 | Breeding method of long-grain indica-japonica intermediate wide-affinity restorer line |
| CN113661916B (en) * | 2021-06-29 | 2022-05-06 | 高邮周邶墩农业发展有限公司 | Breeding method of long-grain indica-japonica intermediate wide-affinity restorer line |
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