广西科学2016，Vol.23Issue(3)：241-247,7.DOI:10.13656/j.cnki.gxkx.20160713.012
条斑紫菜不同栽培品系的遗传多样性分析
Genetic Diversity of Different Cultivars of Pyropia yezoensis
摘要
Abstract
Objective]Different cultivars were screened and bred by mutation or hybridization, and their genetic diversity was determined.[Methods]Molecular markers ISSR,AFLP and RAPD were employed to analyze the genetic diversity of screened cultivars.[Results]The poly-morphism ratio shown by ISSR,AFLP and RAPD was 38.10%,38.95% and 61.75%,respec-tively.The genetic distance shown by ISSR,AFLP and RAPD between different cultivars of Pyropia yezoensis was 0.1785,0.1029 and 0.2845,respectively.Although the clustering results were not consistent,the cultivars Y-0602,Y-HA01 and Y-H001 always clustered to-gether,whereas Y-DL02 tended to cluster as outgroup.[Conclusion]After being screened and bred by mutation or hybridization,the cultivars studied in the present paper are genetically the same species as P.yezoensis but essentially dif-ferent cultivars with certain genetic diversity.关键词
条斑紫菜/遗传距离/分子标记/栽培品系Key words
Pyropia yezoensis/genetic distance/molecular markers/cultivars分类
农业科技引用本文复制引用
杨立恩,韩晓磊,周伟,邓银银,许广平,胡传明,朱建一,陆勤勤,徐建国..条斑紫菜不同栽培品系的遗传多样性分析[J].广西科学,2016,23(3):241-247,7.基金项目
国家自然科学基金面上项目(31272664),国家海洋局海洋公益性行业科研专项项目(201105023),南通市科技计划项目(MS22015026)和江苏省水产三新工程重大项目(D2015-18)资助。 （31272664）
