Evaluation of the genetic diversity of fibre quality traits in upland cotton(Gossypium hirsutum L.) inferred from phenotypic variations
Evaluation of the genetic diversity of fibre quality traits in upland cotton（Gossypium hirsutum L.） inferred from phenotypic variations作者机构：North China Key Laboratory for Crop Germplasm Resources of Ministry of Education/Key Laboratory for Crop Germplasm Resources of Hebei ProvinceHebei Agricultural University
出 版 物：《Journal of Cotton Research》 (棉花研究(英文))
年 卷 期：2019年第2卷第4期
页 面：183-190页
基 金：supported by grants from the National Key Research and Development Program of China(2016YFD0101006 and 2016YFD0101405) the Top Talent Fund of Hebei Province
主 题：Gossypium hirsutum L. Fibre quality Morphological traits Genetic diversity Double-thirty
摘 要：Background:Evaluating phenotypic traits is very important for the selection of elite lines in Gossypium hirsutum *** breeders are interested in using diverse genotypes in hybridization that can segregate for traits of interested with the possibility of selection and genetic *** on phenotypic and molecular diversity helps the breeders for parental ***:In this study,719 global collections of *** *** evaluated for five fibre-related traits during two consecutive years in eight different environments.A series of phenotypic data for fibre quality traits were obtained and the elite accessions were further screened using principal component analysis and phylogenetic tree construction based on single nucleotide polymorphism ***:We found that fibre quality traits showed a wide range of variation among the *** accessions over2 *** general,accessions from outside China tended to have higher fibre length （FL） and fibre strength （FS）than did Chinese *** different regional accessions in China,North/Northwest accessions tended to have the highest FL,FS and best fibre *** assessing five fibre quality traits over 2 years with genotypic data,31 elite germplasms reaching double-thirty quality values (FL≥30 mm and FS≥30 cN·tex-1) were ***:This study provided a detailed phenotypic diversity description of a population representing a wide range of upland cotton *** findings provide useful information about possible elite fibre quality parents for cotton breeding programs.
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