1.莆田市农业科学研究所,福建莆田 351106;2.福建农林大学农学院教育部作物遗传与综合利用重点实验室,福州 350002
研究方向为大豆作物种质资源与遗传育种,E-mail: ptlqh0725@126.com
贾 琪,研究方向为植物抗逆性与分子遗传学,E-mail: jiaqi@fafuedu.cn
柯庆明,研究方向为大豆遗传育种与栽培,E-mail: keqm@163.com
国家自然科学基金面上项目(32372061);福建省科技计划项目—农业引导性(2021N0039);福建省科技计划项目—星火项目(2023S0013);福建省自然科学基金面上项目(2024J01380);莆田市科技计划项目—技术开发与应用(2023NJJ002)
1.Putian Institute of Agricultural Sciences, Putian 351106, Fujian;2.Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002
General Program of National Natural Science Foundation of China (32372061); Fujian Provincial Science and Technology Project-Agricultural Guidance (2021N0039); Fujian Provincial Science and Technology Project-Spark Initiative (2023S0013); General Program of the Natural Science Foundation of Fujian Province (2024J01380); Putian Science and Technology Project-Technology Development and Application (2023NJJ002)
选用2003-2022年通过福建省审定的22份菜用大豆品种,基于26个表型性状和30对SSR分子标记进行遗传多样性分析及分子指纹图谱构建。结果表明,22份菜用大豆7个质量性状存在16种变异类型,平均多样性指数为0.494,19个数量性状变异系数变幅为3.44%~50.60%,平均多样性指数为1.934,表明整体具有丰富的表型遗传多样性。30对SSR分子标记共检测到122个等位变异,等位变异数和有效等位变异数平均值分别为4.0667和2.7013,平均Nei′s基因多样性指数为0.5691,平均Shannon′s多态性信息指数为1.0479,多态信息含量变幅为0.0830~0.7319,平均为0.5262,其中Satt184引物的多态信息含量最高。22个品种间的遗传相似系数为0.3301~1.0000,平均为0.6341,其中沪选23-9与毛豆389之间的遗传相似数最大,青酥6号与闽豆1号间的遗传相似系数最小。聚类分析表明,22份菜用大豆基于表型性状和分子标记均被划分为3类,闽豆1号基于两种方法均被单独划分为一类,表明闽豆1号不管在表型性状还是遗传背景上都与其他品种差异较大,适合用作杂交亲本。综合考虑标记在染色体上分布、带型清晰度、多态等原则,筛选出9对引物Satt197、Satt442、Satt268、Satt005、Satt431、Satt334、Satt556、Sat_112和Satt487,构建22份福建省菜用大豆审定品种分子指纹图谱,利用该引物组合可以区分除沪选23-9、毛豆389和浙鲜10号以外的19份菜用大豆品种。研究结果为福建省菜用大豆种质资源的高效利用和新品种选育提供了科学依据,有利于对已审定品种的区分与保护。
In this study, genetic diversity analysis and the construction of a molecular fingerprinting map were performed for 22 vegetable soybean varieties approved in Fujian province from 2003 to 2022, basing on 26 phenotypic traits and 30 pairs of SSR molecular markers. The results revealed there exhibited 16 types of variations in the seven qualitative traits among the 22 vegetable soybean varieties, with an average diversity index of 0.494. The variation coefficients of the 19 quantitative traits ranged from 3.44% to 50.60%, with an average diversity index of 1.934, indicating rich phenotypic genetic diversity. A total of 122 alleles were detected with 30 pairs of SSR molecular markers, the average number of alleles and effective number of alleles were 4.0667 and 2.7013. The average Nei′s gene diversity index was 0.5691, and the average Shannon′s polymorphism information index was 1.0479. The polymorphism information content varied from 0.0830 to 0.7319, with an average of 0.5262. The Satt184 maker demonstrated the highest polymorphism information content. The genetic similarity coefficient among the 22 varieties ranged from 0.3301 to 1.0000, with an average of 0.6341. The highest genetic similarity coefficient was observed between Huxuan 23-9 and Maodou 389, whereas the lowest coefficient was found between Qingshu No.6 and Mindou No.1. Cluster analysis showed that the 22 vegetable soybean cultivars were classified into three groups based on phenotypic characters and molecular markers. Mindou No.1 was classified into a separate group using both methods, indicating that it would have significant differences from other cultivars in both phenotypic traits and genetic background, making it suitable as a parental linefor hybridization. Considering the principles of uniform chromosomal distribution, distinct band patterns, and rich polymorphism, nine SSR makers (Satt197, Satt442, Satt268, Satt005, Satt431, Satt334, Satt556, Sat_112 and Satt487) were selected to construct the molecular fingerprint map of the 22 vegetable soybean varieties approved in Fujian province. With these primer combination, 19 out of the 22 varieties could be distinguished, except for Huxuan 23-9, Maodou 389 and Zhexian No.10. The findings would provide a scientific foundation for the efficient utilization of vegetable soybean germplasm resources and breeding in Fujian province. This would also contribute to the differentiation and preservation of approved varieties.
李清华,颜墩炜,刘雨杭,等.福建菜用大豆审定品种遗传多样性分析和
