陆地棉染色体片段代换系（BC_5F_3和BC_5F_（3∶4））产量和纤维品质性状表现的评价

本研究以海岛棉海1为供体亲本,陆地棉中棉所36为轮回亲本构建了一套棉花染色体片段代换系,通过对BC5F3和BC5F3∶4这两个世代材料表型数据的分析,结果显示,同年份中与轮回亲本比较,群体各性状的极差和遗传变异系数都比较大;1942个BC5F3单株群体中衣分最高达49.57%,超轮回亲本比例为71.78%,纤维断裂比强度最高为36.5cN/tex;658个BC5F3∶4株行群体中纤维上半部平均长度最大值32.25mm,超轮回亲本比例为47.57%,断裂比强度最高达到32.2cN/tex,超轮回亲本比例为40.27%;通过相关性分析,主要产量性状和纤维品质性状在两个世代间呈极显著正相关,衣分与纤...

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Bibliographic Details
Published in植物遗传资源学报 Vol. 13; no. 5; pp. 773 - 781
Main Author 张金凤 石玉真 梁燕 贾玉娟 张保才 李俊文 龚举武 刘爱英 商海红 王涛 巩万奎 袁有禄
Format Journal Article
LanguageChinese
Published 2012
Subjects
产量性状
染色体片段代换系
海岛棉
纤维品质性状
陆地棉
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ISSN1672-1810

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Summary:本研究以海岛棉海1为供体亲本,陆地棉中棉所36为轮回亲本构建了一套棉花染色体片段代换系,通过对BC5F3和BC5F3∶4这两个世代材料表型数据的分析,结果显示,同年份中与轮回亲本比较,群体各性状的极差和遗传变异系数都比较大;1942个BC5F3单株群体中衣分最高达49.57%,超轮回亲本比例为71.78%,纤维断裂比强度最高为36.5cN/tex;658个BC5F3∶4株行群体中纤维上半部平均长度最大值32.25mm,超轮回亲本比例为47.57%,断裂比强度最高达到32.2cN/tex,超轮回亲本比例为40.27%;通过相关性分析,主要产量性状和纤维品质性状在两个世代间呈极显著正相关,衣分与纤维长度及强度在群体内呈极显著负相关。这些结果表明,通过高代回交后连续自交得到的染色体片段代换系群体中存在丰富的遗传变异,含有大量具有丰产、纤维品质优异的单株,两个世代材料具有较好的一致性与稳定性;产量和品质同步改良还存在一定难度。本研究为进一步的近等基因系分析、基因克隆、基因聚合效应分析等储备了大量的研究材料。
Bibliography:G.hirsutum; G.barbadense; Chromosome Segment Substitution Lines（CSSLs）; Yield traits; Fiber quality traits
ZHANG Jin-feng,SHI Yu-zhen,LIANG Yan,JIA Yu-juan,ZHANG Bao-cai,LI Jun-wen,GONG Ju-wu, LIU Ai-ying,SHANG Hai-hong,WANG Tao,GONG Wan-kui,YUAN You-lu（Cotton Research Institute,Chinese Academy of Agricultural Sciences/State key Laboratory of Cotton Biology,Anyang 455000）
11-4996/S
Two generations of CSSLs（Chromosome Segment Substitution Lines）,which were derived from a cross of the upland cotton（Gossypium hirsutum L.）CCRI36（Chinese Cotton Research Institute 36）as the recipient parent and the island cotton（Gossypium barbadense L.）Hai 1 as the donor parent,were used to evaluate the phenotypic traits related to yield and fiber quality.Compared to the recurrent parent in the same year,the variance ranges and genetic variation coefficients of all traits in populations were very large.In 1942 BC5F3 individuals,the largest lint percentage was as high as 49.57%,and the lint percentage was 71.78% higher than the recurre
ISSN:1672-1810