首页|期刊导航|中国农业科学（英文版）|Genetic Diversity Within a Jackfruit(Artocarpus heterophyllus Lam.)Germplasm Collection in China Using AFLP Markers
中国农业科学（英文版）2010，Vol.9Issue(9)：1263-1270,8.
Genetic Diversity Within a Jackfruit(Artocarpus heterophyllus Lam.)Germplasm Collection in China Using AFLP Markers
Genetic Diversity Within a Jackfruit(Artocarpus heterophyllus Lam.)Germplasm Collection in China Using AFLP Markers
摘要
Abstract
Jackfruit is cross-pollinated and mostly seed propagated,a wide range of variation exists in fruit quality.With the development of efficient vegetative propagation methods,excellent genotypes selected from these seed propagated seedlings will gradually replace other genotypes in jackfruit producing areas.In this study,genetic diversity of 50jackfruit accessions from three provinces in China was analyzed based on amplified fragment length polymorphic(AFLP)markers.A total of 320 unambiguous bands were produced by eight primer combinations,and 65(20.3%)of them were polymorphic.Genetic similarity coefficients ranged from 0 to 0.9841,with an average of 0.5000,indicating a moderate genetic diversity in this collection.The dendrogram derived by unweighted pair group method with arithmetic mean algorithm(UPGMA)analysis revealed five groups,and no correlation between genetic relationship and geographical origin were found.Accessions of soft and firm flesh type were not clustered into distinct groups,neither could yearly bearing once,or twice fruit accessions.This study has provided useful information for collection and preservation of jackfruit germplasm worldwide.关键词
jackfruit/genetic diversity/AFLP/molecular markersKey words
jackfruit/genetic diversity/AFLP/molecular markers分类
农业科技引用本文复制引用
LI Ying-zhi,MAO Qi,FENG Feng,YE Chun-hai..Genetic Diversity Within a Jackfruit(Artocarpus heterophyllus Lam.)Germplasm Collection in China Using AFLP Markers[J].中国农业科学（英文版）,2010,9(9):1263-1270,8.基金项目
This work was financially supported by the National Natural Science Foundation of China(30771484), Guangdong Agricultural Science and Technology Development Foundation,China(2007A020200006),and the Natural Science Foundation of Guangdong Province, China(2007-73).We thank Barbara Luiser(Guangdong Ocean University,China)for her help in revising the manuscript. （30771484）
