[1]曹鹏辉,于雅洁,宋云生,等.太湖地区粳稻地方种质资源的表型多样性分析与评价[J].江苏农业学报,2025,(07):1249-1259.[doi:doi:10.3969/j.issn.1000-4440.2025.07.001]
 CAO Penghui,YU Yajie,SONG Yunsheng,et al.Phenotypic diversity analysis and evaluation of japonica rice germplasm resources in the Taihu Lake region[J].,2025,(07):1249-1259.[doi:doi:10.3969/j.issn.1000-4440.2025.07.001]
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太湖地区粳稻地方种质资源的表型多样性分析与评价()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2025年07期
页码:
1249-1259
栏目:
遗传育种·生理生化
出版日期:
2025-07-31

文章信息/Info

Title:
Phenotypic diversity analysis and evaluation of japonica rice germplasm resources in the Taihu Lake region
作者:
曹鹏辉于雅洁宋云生陈飞谢裕林董明辉乔中英袁彩勇
(江苏太湖地区农业科学研究所, 江苏苏州215106)
Author(s):
CAO PenghuiYU YajieSONG YunshengCHEN FeiXIE YulinDONG MinghuiQIAO ZhongyingYUAN Caiyong
(Jiangsu Taihu Lake Region Institute of Agricultural Sciences, Suzhou 215106, China)
关键词:
粳稻种质资源表型多样性综合评价
Keywords:
japonica ricegermplasm resourcesphenotypic diversitycomprehensive evaluation
分类号:
S511.024
DOI:
doi:10.3969/j.issn.1000-4440.2025.07.001
文献标志码:
A
摘要:
为了解和评估太湖地区粳稻地方种质资源遗传多样性水平,拓宽粳稻育种中亲本的遗传选择基础,本研究对太湖地区206份粳稻种质资源的13个表型性状进行多样性分析以及综合评价。结果表明,206份粳稻种质资源的13个表型性状的变异系数为2.33%~23.43%,多样性指数为1.35~2.09,说明太湖地区粳稻种质资源的遗传多样性较为丰富。13个表型性状的前7个主成分的累计贡献率为86.89%,包含绝大部分遗传信息,能代表太湖地区粳稻种质资源的基本特征。全生育期天数、剑叶长、株高、穗长、每穗总粒数和谷粒长宽比6个表型性状显著影响综合评价D值的大小,可作为太湖地区粳稻种质资源评价的关键指标。206份粳稻种质资源聚类分为3大类群,其中第Ⅲ类群的综合性状最优。
Abstract:
In order to understand and evaluate the genetic diversity level of japonica rice germplasm resources in the Taihu Lake region, and broaden the basis of genetic selection of parents in japonica rice breeding, the diversity and comprehensive evaluation of 13 phenotypic traits of 206 japonica rice germplasm resources in the Taihu Lake region were analyzed in this study. The results showed that the coefficient of variation of 13 phenotypic traits of 206 japonica rice germplasm resources was 2.33%-23.43%, and the diversity index was 1.35-2.09, indicating that the genetic diversity of japonica rice germplasm resources in the Taihu Lake region was abundant. The cumulative contribution rate of the first seven principal components of 13 phenotypic traits was 86.89%, which contained most of the genetic information and represented the basic characteristics of japonica rice germplasm resources in the Taihu Lake region. The six phenotypic traits, including whole growth period duration, flag leaf length, plant height, panicle length, total grain number per panicle and grain length-to-width ratio, significantly affected the comprehensive evaluation D value and could be used as the key indicators for the evaluation of japonica rice germplasm resources in the Taihu Lake region. The 206 japonica rice germplasm resources were clustered into three groups, and the comprehensive traits of the group Ⅲ were the best.

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备注/Memo

备注/Memo:
收稿日期:2024-10-16基金项目:江苏省重点研发项目(BE2022335);苏州市科技计划项目(SNG2023004)作者简介:曹鹏辉(1990-),男,江西余干人,博士,助理研究员,主要从事水稻遗传育种研究。(E-mail)salute272@163.com通讯作者:乔中英,(E-mail)qiaozhongying@163.com;袁彩勇,(E-mail)hysdycy@163.com
更新日期/Last Update: 2025-08-19