| 200份陆地棉种质资源农艺性状遗传多样性分析 |
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| 引用本文： | 王俊铎,龚照龙,梁亚军,艾先涛,郭江平,莫明,李雪源,郑巨云.200份陆地棉种质资源农艺性状遗传多样性分析[J].新疆农业科学,2020,57(9):1623-1629. |
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| 作者姓名： | 王俊铎 龚照龙 梁亚军 艾先涛 郭江平 莫明 李雪源 郑巨云 |
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| 作者单位： | 新疆农业科学院经济作物研究所,乌鲁木齐 830091 |
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| 基金项目： | 棉花优异种质资源精准鉴定(阿拉尔点)与创新利用,国家重点研发计划(2016YFD0100203-21);天山雪松计划(2018XS14);机采优异育种材料创制(2017YFD0101601);天山青年计划“优秀青年科技人才培养项目” (2017Q050) |
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| 摘 要： | 【目的】 研究本地棉花种质基因库,筛选出适于作杂交亲本的种质资源。【方法】 以200份棉花种质资源为材料,研究其形态指标的变异情况和遗传多样性,并以形态指标对 200 份种质进行聚类分析。【结果】 21个形态指标遗传多样性指数(H′)变幅范围在0~1.02。所有材料可划分成6大类,其中第1大类30份材料,茎色紫红色,种子短绒颜色灰褐色材料为主,可以作为彩色棉花育种资源;以170177为主的20份材料种子短绒着生稀毛,种子短绒颜色绿褐色可以作为早熟、无酚、耐高温的育种材料;第6大类50份,所占比例较大。【结论】 200份种质资源的遗传多样性丰富,第6大类50份,可以作为目前新疆育种材料亲本,主要特征为株型塔型,无茎毛,叶色深绿色,叶片大小中,无叶基斑,有限果枝类型,黄色花冠,黄色花药,种子短绒着生情况多毛,种子短绒颜色灰绿色,有种仁色素腺体,吐絮颜色白色。
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| 关 键 词： | 陆地棉 种质资源 农艺性状 遗传多样性分析 |
| 收稿时间： | 2020-04-26 |
Genetic Diversity Analysis of Agronomic Characters in 200 Upland Cotton Germplasm Resources |
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| WANG Junduo,GONG Zhaolong,LIANG Yajun,AI Xiantao,GUO Jiangping,MO Ming,LI Xueyuan,ZHENG Juyun.Genetic Diversity Analysis of Agronomic Characters in 200 Upland Cotton Germplasm Resources[J].Xinjiang Agricultural Sciences,2020,57(9):1623-1629. |
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| Authors: | WANG Junduo GONG Zhaolong LIANG Yajun AI Xiantao GUO Jiangping MO Ming LI Xueyuan ZHENG Juyun |
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| Institution: | Institute of Economic Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China |
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| Abstract: | 【Objective】 To broaden the gene pool of cotton germplasm and screen out the germplasm resources suitable for hybrid parents.【Methods】 the variation of morphological indexes and genetic diversity of 200 cotton germplasms were studied, and the cluster analysis of 200 germplasms carried out.【Results】 The results showed that the variation range of genetic diversity index (H′) of 21 morphological indexes was 0-1.02, and cluster analysis showed that all materials could be divided into 6 categories, of which,among which 30 materials belongs to the first big category with purplish red color stem. Their seeds are mainly of short velvet grayish brown color and can be used as the breeding resources of color cotton; 20 materials of 170177, whose seeds are of short hair green brown color, can be used as the breeding materials of early maturity, phenol free and high temperature tolerance; 50 were in the sixth category, accounting for a large proportion.【Conclusion】 The genetic diversity of 200 germplasm resources is abundant, 50 materials of the sixth class can be used as the parent of breeding materials in Xinjiang at present. It is mainly characterized by tower type of plant type, no stem hair, dark green leaf color, medium leaf size, no leaf base spot, limited branch type, yellow corolla, yellow anther, hairy seed pubescence, gray green seed pubescence, pigment gland of seed kernel and white boll color. |
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| Keywords: | upland cotton germplasm resource agronomic characters genetic diversity |
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