| 甘蓝型油菜细胞质雄性不育MI CMS的育性归类 |
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| 引用本文： | 张洁夫,傅寿仲,盖钧镒. 甘蓝型油菜细胞质雄性不育MI CMS的育性归类[J]. 中国油料作物学报, 1999, 21(4): 4-7 |
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| 作者姓名： | 张洁夫 傅寿仲 盖钧镒 |
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| 作者单位： | [1]南京农业大学农作物种质资源与育种重点开放实验室 [2]江苏省农业科学院经济作物研究所 |
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| 基金项目： | 江苏省“九五”农业科技重大攻关课题!BG96510 |
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| 摘 要： | 利用鞯蓝型油菜细胞质雄性不育ＭＩ ＣＭＳ系统双低不育系及其保持系和恢复系，研究不育系与恢复系杂交后代中不同育性级别植株的育性归属。结果表明不同育性级别植株的花粉数量、分生活力、自交结实率等左异，因而育性分级标准中的１级、２级和３级植株均应归入不育株类，仅４级植株为可育株。根据这一归类方法，ＭＩ ＣＭＳ恢复基因条例一对显性基因的遗传模式。
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| 关 键 词： | 甘蓝型油菜 细胞质雄性不育 育性归类 油菜 |
| 修稿时间： | 1999-01-25 |
A study on the fertility grading system of cytoplasmic male sterile line of MI CMS in rapeseed (Brassica napus L. ) |
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| ZHANG Jie-fu, FU Shou-zhong, GAI Jun-yi. A study on the fertility grading system of cytoplasmic male sterile line of MI CMS in rapeseed (Brassica napus L. )[J]. Chinese Journal of Oil Crop Sciences, 1999, 21(4): 4-7 |
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| Authors: | ZHANG Jie-fu FU Shou-zhong GAI Jun-yi |
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| Abstract: | The fertility grading system in the progeny of the cross between CMS line and restorer line was studied by using the MI CMS line and its maintainer and restorer in rapeseed (Brassica napus L. ). The results showed that the pollen quantity, the viable pollen ratio and the effective podding ratio were significantly different among various fertility grades. The plants of grade 1, 2 and 3 were classified as male sterile ones, and the plants of grade 4 as male fertile ones. According to the grading system, the ratios of the number of male fertile plants to that of male sterile plants were 3: 1 in F2generation and 1: 1 in BC1 generation, indicating that there exited one pair of dominant fertility restoration gene in MI CMS. |
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| Keywords: | Brassica napus L. CMS Fertility grading system |
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