1.浙江省农业科学院病毒学与生物技术研究所,杭州310021;2.浙江省农业科学院作物与核技术利用研究所,杭州310021;3.浙江省农业科学院玉米与特色旱粮研究所,东阳 322100;4.浙江省农业科学院数字农业研究所,杭州 310021
研究方向为种质资源鉴定评价与创新利用,E-mail: heqinliu@126.com
陈合云,研究方向为种质创制与遗传育种,E-mail: 2044670266@qq.com
浙江省农业农村厅种质资源精准鉴定项目(2023JZJD002);第三次全国农作物种质资源普查与收集行动(111821301354052030)
1.Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021;2.Institute of Crops and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021;3.Institute of Maize and Featured Dryland Crops, Zhejiang Academy of Agricultural Sciences, Dongyang 322100;4.Institute of Digital Agriculture, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021
Foundation projects: Precision Identification Project for Agricultural Germplasm Resources by Zhejiang Provincial Department of Agriculture and Rural Affairs(2023JZJD002);The Third National Census and Collection Campaign of Crop Germplasm Resources (111821301354052030)
基于“第三次全国农作物种质资源普查与收集行动”所收集的129份浙江省扁豆地方种质资源,本研究系统地调查了其农艺性状和品质性状,并结合重测序获得的单核苷酸多态性(SNP),综合评价了浙江省扁豆地方种质资源的遗传多样性。结果表明,这些扁豆资源在表型性状上表现出丰富的遗传多样性。13个质量性状共有48个变异类型,香农多样性指数变化范围为0.091~1.486,其中荚形的多样性最高,幼叶色多样性最低。幼叶色以绿色为主(98%),主茎色以紫色为主(49%),旗瓣色、翼瓣色分别以浅紫(69%)和紫红(69%)为主,荚色以浅绿色居多(35%),荚形以镰刀形为主(42%),粒形以椭圆形为主(57%),粒色以黑色为主(49%)。23个数量性状的变异系数介于2.88%~43.26%之间,其中单株籽粒产量的变异最大,含水量的变异最小;香农多样性指数变化范围为1.83~2.25,其中可溶性糖含量多样性最高,成熟期多样性最低。基于SNPs的主成分分析将129份扁豆种质资源划分为4种类型,其中类型Ⅰ纤维素含量最低(6.48%)、粗蛋白含量最高(20.34%);类型Ⅲ具有最高的含水量(87.53%)、可溶性糖含量(21.88%)、粗脂肪含量 (5.99%) 和游离氨基酸含量 (7.98 mg/g),类型Ⅳ则为药用白花白籽扁豆类型。本研究系统地解析了浙江省扁豆种质资源在表型、品质和基因型三个层面上的遗传多样性,为种质创新利用和新品种选育提供科学依据。
Based on 129 hyacinth bean landraces collected from Zhejiang province during "The Third National Census and Collection Campaign of Crop Germplasm Resources", this study systematically investigated their agronomic and quality traits. Combined with single nucleotide polymorphisms (SNPs) obtained from resequencing datasets, we conducted a comprehensive assessment of their genetic diversity of these landraces. The results revealed abundant genetic diversity in phenotypic traits among the hyacinth bean resources. Among the 13 qualitative traits analyzed, 48 variant types were identified, with Shannon diversity index (H’) ranging from 0.091 to 1.486. Pod shape exhibited the highest H’, while young leaf color showed the lowest. Leaf color was predominantly green (98%), main stem color was mainly purple (49%), standard petal and wing petal colors were primarily light purple (69%) and purplish-red(69%), respectively. Pod color was mostly light green (35%), pod shape was mainly falcate (42%), seed shape was predominantly elliptical (57%), and seed color was mainly black (49%). For the 23 quantitative traits, the coefficients of variation (CV) ranged from 2.88% to 43.26%, with grain yield per plant having the highest CV, and water content the lowest. The Shannon diversity index (H’) for quantitative traits ranged from 1.83 to 2.25, where soluble sugar content displayed the highest diversity and maturity duration the lowest. Principal component analysis (PCA) based on SNPs classified the 129 landraces into four clusters. Cluster I had the lowest cellulose content (6.48%) and the highest crude protein content (20.34%); Cluster III exhibited the highest water content (87.53%), soluble sugar content (21.88%), crude fat content (5.99%), and free amino acid content (7.98 mg/g); Cluster Ⅳ consisted of medicinal hyacinth beans with white flowers and white seeds. This study systematically elucidated the genetic diversity of lablab germplasm resources in Zhejiang province at the phenotypic, quality, and genotypic levels, providing a scientific basis for germplasm innovation and the breeding of new varieties.
刘合芹,刘秀慧,朱正梅,等.浙江省扁豆地方种质资源遗传多样性分析与综合评价[J].植物遗传资源学报,2026,27(1):100-116.
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