| 东乡野生稻苗期根系形态性状耐冷性遗传分析 |
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| 引用本文： | 张成良,陈大洲,肖叶青.东乡野生稻苗期根系形态性状耐冷性遗传分析[J].江西农业学报,2010,22(2):1-3,7. |
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| 作者姓名： | 张成良 陈大洲 肖叶青 |
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| 作者单位： | 1. 江西省广丰中学,江西,广丰,334600
2. 江西省农业科学院,水稻研究所,江西,南昌,330200 |
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| 摘 要： | 采用沙培法,应用主基因多基因混合遗传模型分析了低温胁迫下强耐冷的东乡野生稻与两个冷敏感籼稻所配组合6个世代材料苗期根系形态性状的遗传,发现东乡野生稻最长不定根长的遗传属于1对加性主基因+加性-显性多基因遗传,不定根数为2对显性-加性-上位性主基因遗传。其中主基因的遗传力都不是很高,表明环境对水稻根系耐冷性的遗传有着不可忽视的影响。
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| 关 键 词： | 东乡野生稻 水稻 根系形态性状 低温胁迫 主基因-多基因混合遗传 |
Genetic Analysis of Cold Tolerance of Root System in Seedlings of Dongxiang Wild Rice |
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| ZHANG Cheng-liang,CHEN Da-zhou,XIAO Ye-qing.Genetic Analysis of Cold Tolerance of Root System in Seedlings of Dongxiang Wild Rice[J].Acta Agriculturae Jiangxi,2010,22(2):1-3,7. |
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| Authors: | ZHANG Cheng-liang CHEN Da-zhou XIAO Ye-qing |
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| Affiliation: | 1.Guangfeng Middle School of Jiangxi Province/a>;Guangfeng 334600/a>;China/a>;2.Rice Research Institute/a>;Jiangxi Academy of Agricultural Science/a>;Nanchang 330200/a>;China |
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| Abstract: | By using sandy culture method,the morphological characters of root in rice seedlings of P1,P2,F1,B1,B2 and F2 of two hybrids from Dongxiang wild rice which has strong tolerance to cold and two cold-sensitive indica varieties under low-temperature stress were analyzed by the major gene and minor gene mixed inheritance model.The results both showed that the genetic model of the length of the longest nodal root in Dongxiang wild rice seedlings belonged to D-2(the inheritance of a pair of additive major genes a... |
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| Keywords: | Dongxiang wild rice Morphological characters of root Low temperature stress Major genes and multigene mixed inheritance |
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