南方农业学报2025，Vol.56Issue(4)：1031-1044,14.DOI:10.3969/j.issn.2095-1191.2025.04.003
湖南永州甘蔗野生种质资源考察收集及表型性状多样性分析
Investigation,collection and phenotypic traits diversity of wild sugarcane germplasm resources in Yongzhou,Hunan
摘要
Abstract
[Objective]To analyze the genetic diversity of phenotypic traits of wild sugarcane germplasm resources in Yongzhou,Hunan,which could provide new genetic resources for sugarcane genetic breeding.[Method]A total of 99 wild sugarcane germplasm resources of 5 species in 4 genera were collected from 51 villages(towns)of 11 counties(cities,districts)in Yongzhou.According to the industry standard,26 phenotypic traits(6 quantitative traits and 20 quali-tative traits)were measured,and the coefficient of variation,Shannon-Wiener diversity index(H')and correlation coeffi-cient between quantitative traits were calculated.Finally,cluster analysis was carried out based on quantitative traits.[Result]A total of 99 germplasm resources were collected from the investigation of wild sugarcane germplasm resources in Yongzhou,Hunan,including 37 Narenga porphyrocoma,28 Saccharum spontaneum,20 Erianthus arundinaceus,12 Miscanthus sinensis and 2 Miscanthus floridulus.The wild sugarcane germplasm resources in Yongzhou were mainly dis-tributed in the altitude of 83.0-549.0 m,24°34′00″N-27°35′38″N,111°09′03″E-112°35′58″E.The interspecific varia-tion of wild sugarcane germplasm resources was abundant,and the average coefficient of variation was 25.0％-35.1％.The average coefficient of variation of N.porphyrocoma was the largest,which was 35.1％,and the average coefficient of variation of S.spontaneum was the smallest,which was 25.0％.There was no significant correlation between internode length and leaf length,stalk length and brix(P>0.05,the same below),and there was no significant correlation between brix and leaf length,plant height.The H′ of quality traits of 99 sugarcane wild germplasm resources ranged from 0 to 1.3086.Cluster analysis and excellent resource screening showed that 2023HBW212 of N.porphyrocoma Ⅳ group,2023GSM206 and 2023GSM007 of S.spontaneumⅠgroup,2023BM204 of E.arundinaceus Ⅲ group and 2023M204 of M.sinensis Ⅰ group had good yield and quality traits.[Conclusion]The collection of wild sugarcane germplasm resources fills the gap in the systematic investigation of Guangxi Sugarcane Germplasm Repository(Nanning)in Yongzhou,Hu-nan.The 99 wild sugarcane germplasm resources collected have rich genetic diversity of phenotypic traits,and 5 germ-plasms with excellent comprehensive performance are screened out,which have breeding and utilization potential.关键词
甘蔗/野生种质资源/表型性状/遗传多样性/湖南永州Key words
sugarcane/wild germplasm resource/phenotypic traits/genetic diversity/Yongzhou,Hunan分类
农业科学引用本文复制引用
宗文一,段维兴,张保青,张革民,刘俊仙,刘菁,周忠凤,周珊,黄玉新,徐超华..湖南永州甘蔗野生种质资源考察收集及表型性状多样性分析[J].南方农业学报,2025,56(4):1031-1044,14.基金项目
国家重点研发计划项目(2021YFD1200204) （2021YFD1200204）
广西科技重大专项(桂科AA22117002-1) （桂科AA22117002-1）
广西农业科学院基本科研业务专项(桂农科2021YT004,桂农科2024YP028) National Key Research and Development Program of China(2021YFD1200204) （桂农科2021YT004,桂农科2024YP028）
Guangxi Ma-jor Science and Technology Special Project(Guike AA22117002-1) （Guike AA22117002-1）
Basic Scientific Research Project of Guangxi Aca-demy of Agriculture Sciences(Guinongke 2021YT004,Guinongke 2024YP028) （Guinongke 2021YT004,Guinongke 2024YP028）
