Identification and Genetic Analysis of Fertility Restoration Ability in Dongxiang Wild Rice (Oryza r

来源 :Rice Science | 被引量 : 0次 | 上传用户:jingbao0804
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Two populations of Dongxiang wild rice (Oryza rufipogon), Shuitaoshu and Dongtangshang, were crossed with five male sterile rice lines with different cytoplasmic backgrounds (B06S, Zhenshan 97A, Xieqingzao A, Zhong 9A, and Yuetai A), and the seed setting rate of the F1 was used to judge the fertility restoration ability in the Dongxiang wild rice. With P1, F1, P2, and F2 populations as materials, the Akaike’s Information Criterion (AIC) was used to identify the major genes affecting quantitative traits, and when the major genes existed, the genetic effects of the major gene and the polygene and their genetic variance were estimated through segregation analysis. The seed setting rates of the F1 generation varied from 45.98% to 76.57%, suggesting that the Dongxiang wild rice had the fertility restoration ability. One major gene plus polygene mixed inheritance model was the most fitted genetic model for this trait in all the F2 populations. The heritability values of the major genes varied from 56.63% to 88.29% and those of the polygenes from 2.74% to 30.97%, and the total heritability values were from 63.17% to 94.01%. The major gene inheritance of the combination Zhong 9A/Dongtangshang was controlled by the additive effect without dominant effect, and the other nine combinations were by the completely dominant inheritance. Two populations of Dongxiang wild rice (Oryza rufipogon), Shuitaoshu and Dongtangshang, were crossed with five male sterile rice lines with different cytoplasmic backgrounds (B06S, Zhenshan 97A, Xieqingzao A, Zhong 9A, and Yuetai A), and the seed setting rate of the F1 was used to judge the fertility restoration ability in the Dongxiang wild rice. With P1, F1, P2, and F2 populations as materials, the Akaike’s Information Criterion (AIC) was used to identify the major genes affecting quantitative traits, and when the major genes existed, the genetic effects of the major gene and the polygene and their genetic variance were estimated through segregation analysis. The seed setting rates of the F1 generation varied from 45.98% to 76.57%, suggesting that the Dongxiang wild rice had the fertility restoration ability. One major gene plus polygene mixed inheritance model was the most fitted genetic model for this trait in all the F2 populations. The heritability values ​​of the major genes var ied from 56.63% to 88.29% and those of the polygenes from 2.74% to 30.97%, and the total heritability values ​​were from 63.17% to 94.01%. The major gene inheritance of the combination Zhong 9A / Dongtangshang was controlled by the additive effect without dominant effect, and the other nine combinations were by the completely dominant inheritance.
其他文献
期刊
期刊
期刊
随着我国综合国力的增强与社会文明的进步,我国的教育事业也迎来了新的春天,进入全新的现代化发展时期.英语教学作为我国义务教育教学阶段重要的组成内容之一,对于促进我国对
期刊
本文对CAD/CAM模板在下颌升支垂直截骨术和不翻瓣种植中应用及下颌后牙三单位种植体即刻负载进行了分析。本研究分为三个部分:   第1部分:CAD/CAM个体化模板在下颌升支垂直
目的:研究使用种植体支持上颌中切牙所需要的恰当规格。方法:本实验使用一位覆合覆盖正常、骨量符合种植要求的、中切缺失患者的CBCT数据,利用Mimics、Ansys、Pro-E等软件,建
期刊
随着新课程教学改革的不断推进,新的高考方案即将实施,提高课堂教学质量,追求课堂教学的有效性正成为许多教师努力探讨的课题.课堂教学的有效开展,要求教师依据《课程标准》
期刊