首页|基于SSR标记对茶树紫阳群体种种质资源的遗传多样性研究

基于SSR标记对茶树紫阳群体种种质资源的遗传多样性研究

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  • 国家科技期刊平台
  • NETL
  • NSTL
  • 万方数据
  • 维普
利用25对SSR分子标记对30份陕西茶树紫阳群体种种质和9份茶树对照品种的遗传多样性进行了研究,结果共扩增出清晰、稳定条带236条,平均每对标记扩增9.44条,其中多态性条带数为225条,多态率达95.34%.茶树紫阳群体种不同种质间的遗传距离在0.195～0.736之间,平均遗传距离为0.591,其中ZY01与ZY18之间的遗传距离最大(0.736),亲缘关系最远;ZY10与ZY12之间的遗传距离最小(0.195),亲缘关系最近.当遗传距离为0.640时,可将39份茶树材料聚类为13类,其中30份茶树紫阳群体种种质被聚为10类.结果表明安康茶树紫阳群体种种质资源的遗传多样性较高.
Genetic Diversity of Camellia sinensis Ziyang Population Germplasm Resources Based on SSR Markers
Thirty Camellia sinensis Ziyang germplasm resources and 9 Camellia sinensis cultivars were used to analyze the genetic diversity based on 25 pairs of SSR markers.A total of 236 stable and clear bands were amplified,with an average of 9.44 bands per one marker.Among them,225 bands were polymorphic,with a polymorphism rate of 95.34%.The genetic distance of Camellia sinensis Ziyang populations were 0.195～0.736,with an average genetic distance of 0.591.The genetic distance between ZY01 and ZY18 was the largest(0.736),with the farthest genetic relationship.The genetic distance between ZY10 and ZY12 was the smallest(0.195),with the closest genetic relationship.When the genetic distance was 0.640,39 tea tree materials could be clustered into 13 categories,of which 30 Camellia sinensis Ziyang population germplasm resources were clustered into 10 categories.The results indicated that the genetic diversity of Camellia sinensis Ziyang population germplasm resources was higher.

Camellia sinensisZiyang population germplasm resourcesSSR molecular markerCluster analysisGenetic diversity

田悦、张垚、赵卫国、塔娜、伍贤密、齐玉岗、吴冲、常权记

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安康学院 现代农业与生物科技学院,陕西 安康 725000

安康市紫阳县科技局,陕西 安康 725300

茶树 紫阳群体种 SSR分子标记 聚类分析 遗传多样性

陕西省大学生创新创业训练计划项目陕西省茶产业协同创新中心项目陕西高校青年创新团队项目安康市科学技术研究发展计划项目安康学院高层次人才引进项目

20231139701123JY001AK2021-NYZC-022021AYQDZR12

2023

10.19386/j.cnki.jxnyxb.2023.12.010

江西农业学报
江西省农业科学院 江西省农学会

江西农业学报

CSTPCD
影响因子：0.632
ISSN：1001-8581
年,卷(期)：2023.35(12)
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