Yang ShoupingGai JunyiXu Hanqing.A GENETICAL AND CYTOMORPHOLOGICAL STUDYON THE MALE STERILEMUTANT NJ89- 1 IN SOYBEANS[J].Soybean Science,1998,17(01):32-38.[doi:10.11861/j.issn.1000-9841.1998.01.0032]
大豆雄性不育突变体N J89— 1的遗传学与细胞学鉴定
- Title:
- A GENETICAL AND CYTOMORPHOLOGICAL STUDYON THE MALE STERILEMUTANT NJ89- 1 IN SOYBEANS
- Keywords:
- Soy bean; Male Sterility; Mutant; Inheritance; Cytomo rpholo gy
- 文献标志码:
- A
- 摘要:
- 花粉发芽实验N J89— 1雄性不育度高达99. 25% 以上且稳定,人工授粉试验N J89— 1的雌性育性正常,说明N J89— 1是一个雄性不育雌性可育突变体。不育株自然授粉后代中育性分离结果表明N J89— 1雄性不育性受单隐性核基因控制。等位性测验表明N J89— 1不育基因与ms1~ ms5均不等位。N J89— 1在败育时期、减数分裂、四分体形成、小孢子壁发生、花药壁发育、花粉粒形态等诸多方面与ms1~ ms6突变体均存在差异,而与st2~ st5突变体却有相似的减数分裂变异如联会异常等,但是N J89— 1的雌性育性正常, st2~ st5突变体的雌性均高度不育。因而N J89— 1是一个既不同于ms类型又不同于st类型的新雄性不育突变体。建议将N J89— 1雄性不育基因符号定为ms7。
- Abstract:
- Artificial pollinatio n experiment s rev ealed that the female fertility of N J89- 1 w asno rmal, then, N J89- 1 w as a male- sterile female- fertile muta nt. Pollen g erminationex periments show ed that the male steri li ty o f N J89- 1 w as pret ty high and stable wi th apollen g ermination percentage less than 0. 75% . Genetic data led to the conclusion thatthe male steri li ty of N J89- 1 was co nt rolled by a sing le recessiv e nuclear g ene. Alleli smtests indicated that the male sterile g ene of N J89- 1 w as no n- al lelic to the male sterileg enes of ms1, ms2, ms3, ms4 and ms5. The cy tomorpho logical observa tions o n antherand po llen dev elopment show ed that N J89- 1 was di fferent f rom ms1~ ms6 mutants inmany aspect s such as abor tion stag e, meiosis, tet rad fo rmation, pollen w all and antherw all etc. N J89- 1 display ed similar meio tic abnormalities o f asy napsis o r desynapsis tothose o f st2~ st5 mutants, but dif fered f rom st2~ st5 mutants in female fer tili ty, namely, the female of N J89- 1 w as normal , while those of st2~ st5 muta nt s w ere st ronglyimpai red. Therefore, N J89- 1 w as a new male sterile mutant. The male sterile g enesymbol of N J89- 1 w as proposed to be ms7.
参考文献/References:
[1 ] 盖钧镒,胡蕴珠, 陈建民,顾蕴洁, 1980,保存大豆花粉生活力的试验, 作物学报6( 1): 11~ 16
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