|
| 河南省小麦品种(系)粒重相关基因等位变异的鉴定与分析 |
| Identification and Analysis of Allele Variation Types ofGrain Weight Related Genes in Henan Wheat Cultivars (Lines) |
| 投稿时间：2023-12-07 修订日期：2024-03-31 |
| DOI： |
| 中文关键词: 河南小麦 粒重基因 功能标记 等位变异 千粒重 |
| 英文关键词:Henan wheat Grain weight gene Functional marker Allelic variation Thousand-grain weight |
| 基金项目:河南省产业研发联合基金重大项目(225101610048)第一作者E-maildonghb1021@163.com通讯作者：张煜(E-mail：zhangyu6786@sina.com) |
|
| 摘要点击次数: 26 |
| 全文下载次数: 0 |
| 中文摘要: |
| 小麦粒重是影响小麦产量的重要因素之一,培育高粒重品种是小麦育种的重要目标之一。本研究以395份河南省小麦品种(系)为材料,利用分子标记技术对其粒重相关基因TaCwi-A1、TaSus2-2B、TaGw8-B1、TaGS-D1的等位变异进行了鉴定,结合2021-2023连续两年度千粒重测定结果,分析以上四种粒重基因不同等位变异及其不同组合类型对千粒重的影响。结果表明,TaCwi-A1、TaSus2-2B、TaGw8-B1和TaGS-D1位点在供试材料中均存在2种等位变异,共具有15种不同粒重等位基因组合类型。综合分析不同粒重等位基因及其组合类型与千粒重关系,等位基因TaSus2-2Ba对粒重的正向作用效应显著,而等位基因TaCwi-A1a和TaGS-D1a分别对粒重的正向作用效应不显著。TaCwi-A1b+TaSus2-2Ba+TaGS-D1b+TaGw8-B1a、TaCwi-A1a+TaSus2-2Ba+ TaGS-D1a+TaGw8-B1a、TaCwi-A1b+TaSus2-2Ba+TaGS-D1a+TaGw8-B1a这三种基因组合类型为小麦高粒重优势基因型组合。 |
| 英文摘要: |
| Wheat grain weight is one of the important factors of wheat yield, and cultivating varieties with high grain weight is an important goal of high-yield wheat breeding. In this study, 395 wheat varieties (lines) from Henan Province were used to identify the allelic variations of grain weight related genes TaCwi-A1, TaSus2-2B, TaGw8-B1 and TaGS-D1. At the same time, the thousand grain weight of these materials were measured for two consecutive years from 2021 to 2023, in order to further analyze the effects of different allele variations and combinations of the above-mentioned four grain weight genes on thousand grain weight. The results showed that the loci of TaCwi-A1, TaSus2-2B, TaGw8-B1 and TaGS-D1 all had two allele variations, and 15 different combinations of grain weight alleles in 395 wheat varieties (lines). It was found that the TaSus2-2Ba had a significant positive effect on grain weight, while the TaCwi-A1a and TaGS-D1a alleles had no significant positive effect on grain weight. TaCwi-A1b+TaSus2-2Ba+TaGS-D1b+TaGw8-B1a, TaCwi-A1a+TaSus2-2Ba+ TaGS-D1a+TaGw8-B1a, and TaCwi-A1b+ TaSus2-2Ba+TaGS-D1a+TaGw8-B1a, these three genotypes of different allele combinations have a relatively high average thousand grain weight, which are the advantageous genotypes. |
|
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
基本信息
