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  • 石博,关峰,张景云,等.江西省苋菜种质资源收集与多样性分析[J].植物遗传资源学报,2021,22(3):692-699.    [点击复制]
  • SHI Bo,GUAN Feng,ZHANG Jing-yun,et al.Field Collection and Genetic Diversity Analysis of Amaranth Germplasm Resource in Jiangxi Province of China[J].植物遗传资源学报,2021,22(3):692-699.   [点击复制]
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江西省苋菜种质资源收集与多样性分析
石博1, 关峰1, 张景云1, 万新建1, 张会国2, 黄国东2
0
(1.江西省农业科学院蔬菜花卉研究所;2.高安市农业农村局)
摘要:
通过“第三次全国农作物种质资源普查与收集行动”共从江西省27个县(市/区)收集到62份地方苋菜种质资源。本研究对收集到的地方苋菜种质资源的12个性状进行遗传多样性分析和聚类分析,结果表明,江西地方苋菜资源表型性状有着较大的遗传差异,质量性状以叶形的遗传多样性指数最高,为1.627,数量性状以根茎质量的遗传多样性指数最高,为2.082。聚类分析将其分为4大类,其中第II类群花叶,叶片肥大,产量较高。相关性分析发现产量与株高、叶质量、根茎质量呈极显著正相关。根据以上结果从中筛选出6份表型丰富的优异苋菜资源,产量高、生产期短、商品性较好,可作为苋菜新品种的育种材料继续研究。
关键词:  江西  苋菜  收集  遗传多样性
DOI:10.13430/j.cnki.jpgr.20200927002
投稿时间:2020-09-27修订日期:2020-11-12
基金项目:国家现代农业产业技术体系(CARS-23);第三次全国农作物种质资源普查与收集行动;江西省重点研发计划一般项目(20202BBFL63010)
Field Collection and Genetic Diversity Analysis of Amaranth Germplasm Resource in Jiangxi Province of China
SHI Bo1, GUAN Feng1, ZHANG Jing-yun1, WAN Xin-jian1, ZHANG Hui-guo2, HUANG Guo-dong2
(1.Institute of Vegetable and Flower,Jiangxi Acadmy of Agricultural Sciences;2.Gaoan Agriculture Bureau)
Abstract:
Under the frame of the Third National Survey and Collection of Crop Germplasm Resources, we carried out systematic investigation of vegetable germplasm from 27 selected counties, cities or districts in Jiangxi Province of China. A total of 62 amaranth germplasm accessions were collected, followed by the genetic diversity at five quality-related traits and seven quantitative traits. There were significant genetic diversity at the phenotypic traits present in local amaranth germplasm resource. The leaf type and fresh weight at the quality-related and quantitative traits represented highest values (1.627 and 2.082) on the genetic diversity, respectively. The germplasm accessions were classified into four sub-groups, including sub-group II among which the germplasm resource showed divided leaf, leaf hypertrophy and higher yield per plant. The yield per plant was detected showing significant positive correlation with three traits plant height, leaf mass as well as root and stem weight. Finally, six amaranth varieties with excellent performance (i.e. high yield and short growth period) were identified thus providing valuable resources with commercial interests in breeding for new amaranth varieties.
Key words:  Jiangxi  Amaranth  collection  genetic diversity

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