新疆农业科学2024，Vol.61Issue(5)：1172-1181,10.DOI:10.6048/j.issn.1001-4330.2024.05.015
黑桑种质资源表型性状变异特征分析
Analysis of phenotypic trait variation characteristics of Morus nigra L.germplasm resources
摘要
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.[Meth-ods]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 de-scription characters of 710 black mulberry germplasm resources was low;The diversity of four personality char-acters(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 concen-trated 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 phenotyp-ic characteristics of black mulberry is low.关键词
黑桑/表型性状/种质资源/遗传多样性/聚类分析Key words
Morus nigra L./phenotypic characters/germplasm resource/genetic diversity/cluster analy-sis分类
农业科技引用本文复制引用
杨璐,王娜,范少丽,程平,李宏,汪阳东..黑桑种质资源表型性状变异特征分析[J].新疆农业科学,2024,61(5):1172-1181,10.基金项目
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) （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) Major projects of Xinjiang Uygar Autonomous Region"Lnnovation of mulberry Germplasm and breeding of new fine varieties in Xin-jiang"(20223101488) （XJLG202108）
Major projects of Xinjiang Uygur Autonomous Region Special Fund for Basic Research of Forestry and Fruit Industry(XJLG202108) （XJLG202108）
