新疆农业科学 ›› 2024, Vol. 61 ›› Issue (5): 1172-1181.DOI: 10.6048/j.issn.1001-4330.2024.05.015

• 园艺特产·林业 • 上一篇    下一篇

黑桑种质资源表型性状变异特征分析

杨璐1,2,3(), 王娜3, 范少丽3, 程平3, 李宏3, 汪阳东1()   

  1. 1.中国林业科学研究院亚热带林业研究所,浙江富阳 311400
    2.南京林业大学,南京 210037
    3.新疆林木资源与利用国家林草局重点实验室/新疆林果树种选育与栽培重点实验室,乌鲁木齐 830000
  • 收稿日期:2023-10-07 出版日期:2024-05-20 发布日期:2024-07-09
  • 通信作者: 汪阳东(1973-),男,研究员,博士,研究方向为特色资源植物遗传育种,(E-mail)wyd11111@126.com
  • 作者简介:杨璐(1985-),女,副研究员,硕士,研究方向为植物资源化学与生物活性物质, (E-mail)lycszx_article@163.com
  • 基金资助:
    新疆维吾尔自治区重大专项“新疆桑种质创新与优良新品种选育”(20223101488);新疆维吾尔自治区林业和草原局下发的“林果业基础研究专项资金”(XJLG202108)

Analysis of phenotypic trait variation characteristics of Morus nigra L.germplasm resources

YANG Lu1,2,3(), WANG Na3, FAN Shaoli3, CHENG Ping3, LI Hong3, WANG Yangdong1()   

  1. 1. Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang Zhejiang 311400, China
    2. Nanjing Forestry University, Nanjing 210037, China
    3. Key Laboratory of Forest Resources and Utilization of National Forestry and Grassland Administration in Xinjiang /Key Laboratory of Fruit Tree Species Breeding and Cultivation in Xinjiang, Urumqi 830000, China
  • Received:2023-10-07 Published:2024-05-20 Online:2024-07-09
  • Correspondence author: WANG Yangdong (1973-), male, research fellow, mainly engaged in characteristic resources plant genetics and breeding, (E-mail)wangyangdong@caf.ac.cn
  • Supported by:
    Major projects of Xinjiang Uygur Autonomous Region Special Fund for Basic Research of Forestry and Fruit Industry(XJLG202108)

摘要:

【目的】研究新疆东南部21个采集点的710份黑桑种质资源表型性状,分析遗传多样性,为新疆黑桑种质资源的系统研究及开发利用奠定基础。【方法】对黑桑的15个定性描述性状和12个定量描述性状进行遗传多样性、主成分、聚类和相关性分析。【结果】叶片大小、枝条围度、叶幅、叶形等4个性状多样性较为丰富,其余定量描述性状多样性较低。黑桑表型性状聚类结果主要集中在两大类群,根据行政区域分布,一个类群主要集中在环塔里木盆地南缘县(市),另一个类群主要集中在环塔里木盆地北缘县(市)。果形指数与纬度之间呈显著负相关,其他定量描述性状与地理因子(经纬度和海拔)之间均无相关性,叶片大小和叶片周长的差异是区分不同地区黑桑品种的主要性状特征,此外,叶片大小和周长受到温度的正调控和降雨量的负调控。【结论】黑桑表型性状的遗传多样性较低。

关键词: 黑桑; 表型性状; 种质资源; 遗传多样性; 聚类分析

Abstract:

【Objective】The phenotypic traits of 710 M.nigra L.germplasm resources from 21 collection sites in southeast Xinjiang through the genetic diversity and cluster analysis in the hope of laying the foundation for the systematic research, development and utilization of M.nigra. germplasm resources in Xinjiang.【Methods】The genetic diversity, principal components, clustering and correlation analysis of 15 qualitative and 12 quantitative description characteristics of M.nigra. were carried out.【Results】The diversity of qualitative description characters of 710 black mulberry germplasm resources was low; The diversity of four personality characters (leaf size, branch circumference, leaf width and leaf shape) was relatively rich, while the diversity of other quantitative traits was low; The clustering results of phenotypic traits of M.nigra. were mainly concentrated in two groups.According to the distribution of administrative regions, one group was mainly concentrated in the southern margin of the Tarim Basin, and the other group was mainly concentrated in the northern margin of the Tarim Basin; There was a significant negative correlation between fruit shape index and latitude, while there was no correlation between other quantitative characters and geographical factors (longitude, latitude and altitude); The differences of leaf size and leaf circumference were the main characteristics to distinguish the varieties of M.nigra. varieties from different regions; In addition, the leaf size and perimeter were positively regulated by temperature and negatively regulated by rainfall.【Conclusion】The genetic diversity of phenotypic characteristics of black mulberry is low.

Key words: Morus nigra L.; phenotypic characters; germplasm resource; genetic diversity; cluster analysis

中图分类号: 


ISSN 1001-4330 CN 65-1097/S
邮发代号:58-18
国外代号:BM3342
主管:新疆农业科学院
主办:新疆农业科学院 新疆农业大学 新疆农学会

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