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요약정보
新疆190份棉花材料的遗传多样性评价 / Genetic Diversity Analysisof 190 Cotton Cultivars Collected from Xinjiang
Resource Type
Academic Journal
Authors
权永刚
;
姜辉
;
武晓刚
;
杨恒超
;
蔺怀龙
;
常宝学
;
郭建强
;
陈爱民
;
Quan Yonggang
;
Jiang Hui
;
Wu Xiaogang
;
Yang Hengchao
;
Lin Huailong
;
Chang Baoxue
;
Guo Jianqiang
;
Chen Aimin
Source
棉花科学 / Cotton Sciences
. 44(5):20-27
Subject
新疆
棉花
SSR标记
遗传多样性
类群
Language
Chinese
ISSN
2095-3143
Online Access
Find it @ DONGA
초록
本研究对新疆收集的190份棉花材料进行了主要性状的调查评价,同时结合26个SSR核心标记鉴定的基因型信息,研究了新疆棉花农家种的遗传多样性.结果表明:这些资源在8个主要性状上呈现较为丰富的表型变异,变异系数范围为2.06%~25.62%,香农(Shannon)多样性指数范围为1.4771~2.0631,基因多样性指数变幅度范围为0.5512~0.8336,香农(Shannon)多样性指数(H')变幅度范围为0.9221~2.0435;利用26个SSR分子标记信息将所有材料分为8个类群,除了类群Ⅰ与其他7个类群分子遗传距离较远外,其余7个类群分子遗传距离较小;各类群内材料均存在一定的表型变异,类群Ⅰ的纤维上半部平均长度、断裂比强度、整齐度指数和伸长率最优,类群Ⅷ的籽棉、皮棉和衣分指标最高.本研究从表型和基因型系统评价了新疆190份棉花材料的遗传多样性,为后续棉花种质资源创新和新品种选育提供了依据.
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