[1]王业举,张虎,张博,等.235份陆地棉表型性状遗传多样性分析[J].江苏农业学报,2023,(03):636-644.[doi:doi:10.3969/j.issn.1000-4440.2023.03.003]
　WANG Ye-ju,ZHANG Hu,ZHANG Bo,et al.Genetic diversity analysis of 235 upland cotton materials phenotypic traits[J].,2023,(03):636-644.[doi:doi:10.3969/j.issn.1000-4440.2023.03.003]
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235份陆地棉表型性状遗传多样性分析()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2023年03期
页码:
636-644
栏目:
遗传育种·生理生化
出版日期:
2023-06-30

文章信息/Info

Title:
Genetic diversity analysis of 235 upland cotton materials phenotypic traits
作者:
王业举1; 张虎1; 张博2; 常玉杰1; 高文举1; 耿世伟1; 陈琴1; 陈全家1
（1.新疆农业大学农学院/棉花教育部工程研究中心，新疆乌鲁木齐830052；2.新疆农业大学草业与环境科学学院，新疆乌鲁木齐830052）
Author(s):
WANG Ye-ju1; ZHANG Hu1; ZHANG Bo2; CHANG Yu-jie1; GAO Wen-ju1; GENG Shi-wei1; CHEN Qin1; CHEN Quan jia1
(1.College of Agriculture, Xinjiang Agricultural University/Cotton Engineering Research Center of the Ministry of Education, Urumqi 830052,China；2.School of Grass and Environmental Sciences, Xinjiang Agricultural University, Urumqi 830052,China)
关键词:
陆地棉; 表型性状; 遗传多样性; 聚类分析; 相关性分析
Keywords:
upland cotton; phenotypic traits; genetic diversity; cluster analysis; correlation analysis
分类号:
S562
DOI:
doi:10.3969/j.issn.1000-4440.2023.03.003
文献标志码:
A
摘要:
本研究利用235份陆地棉种质资源材料，对棉花株型、生育期、产量性状展开研究。通过对16个表型性状进行遗传多样性分析、相关性分析、主成分分析、聚类分析及隶属函数计算得到综合评价值,对陆地棉种质资源进行综合评价。结果表明，235份陆地棉群体具有丰富的遗传多样性，性状遗传多样性指数为1.969～2.107。不同农艺性状指标通过主成分分析得到6个独立的因子，主效因子贡献率为6.20%～23.80%，累计贡献率为81.573%。依据特点分为产量相关因子、棉花生长结构因子、早熟相关性状因子等因子。聚类分析按照整体性状分为Ⅳ类，第Ⅰ类群占比15%，株高较高，株型松散；第Ⅱ类群占比27%，株型较为紧凑，生育期较短，产量相对较高，适合新疆地区的机械采收；第Ⅲ类群占比24%，综合表现最差；第Ⅳ类群占比34%，特点为生育期较长，产量一般。通过计算综合评价值并与表型性状进行相关性分析得出，综合评价值与株高、单铃质量、衣分、单铃皮棉质量和有效铃数等指标呈显著正相关。最后，利用线性回归方程逐步回归得到株高、有效铃数、中部果枝长度、落叶等级、单铃质量、有效果枝数、第一果枝高度、全生育期和中部果枝夹角等9个表型性状，这9个表型性状能够综合评价陆地棉的遗传多样性。本研究结果可为陆地棉种质资源的合理利用及亲本选育提供理论依据。
Abstract:
In this study, 235 upland cotton germplasm resources were used to study the plant type, growth period and yield traits. Genetic diversity analysis, correlation analysis, principal component analysis, cluster analysis and membership function calculation of 16 phenotypic traits were conducted to get comprehensive evaluation value, which was used to comprehensively evaluate the upland cotton germplasm resources. The results showed that 235 upland cotton populations had abundant genetic diversity, and the genetic diversity indexes of traits ranged from 1.969 to 2.107. Six independent factors were obtained by principal component analysis for different agronomic traits. The contribution rates of main factors were 6.20%-23.80%, and the cumulative contribution rate was 81.573%. The factors could be divided into yield related factors, cotton growth structure factors, early maturity related factors and other factors according to the characteristics. The overall traits could be divided into four categories by cluster analysis, the first group accounted for 15%, with relative high plant height and loose plant type. The second group accounted for 27%, with relative compact plant type and short growth period, and the yield was relatively high. The second group was suitable for mechanical harvesting in Xinjiang area. The third group accounted for 24%, and its overall performance was the worst. The fourth group accounted for 34%, which was characterized by relative long growth period and ordinary yield. By calculating the comprehensive evaluation value and making correlation analysis with phenotypic traits, it was concluded that comprehensive evaluation value was significantly positively correlated with indices such as plant height, single boll mass, lint percentage, single boll lint mass and effective boll number. Finally, nine phenotypic traits were obtained by stepwise regression of linear regression equation, such as the plant height, effective boll number, length of middle fruit branch, grade of fallen leaves, single boll mass, effective fruit branch number, the first fruit branch height, whole growth period and middle fruit branch angle. The above nine phenotypic traits could comprehensively evaluate the genetic diversity of upland cotton. The results can provide theoretical basis for rational utilization and parent selection of upland cotton germplasm resources.

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备注/Memo

备注/Memo:
收稿日期：2022-08-08 基金项目：中国博士后科学基金面上项目（地区专项支持计划）第69批（2021M693901）；新疆维吾尔自治区自然科学基金项目（2021D01A92）；机采棉品种筛选及配套调控技术研发与推广应用（2020A01002-2）作者简介：王业举（1997-），男，河南新乡人，硕士研究生，研究方向为棉花遗传育种。（E-mail）1301608054@qq.com 通讯作者：陈全家，（E-mail）chqjia@126.com；陈琴，（E-mail）cqq0777@163.com
更新日期/Last Update: 2023-07-11