Establishment and evaluation of primary core collection of apricot (Armeniaca vulgaris) germplasm
ZHANG Qiu-ping
LIU Wei-sheng
LIU Ning
ZHANG Yu-ping
YU Xiang-he
SUN Meng
XU Ming
Abstract：The core collection has been well accepted as a useful way to improve the efficiency of crop germplasm evaluation, conservation and utilization.In order to characterize and utilize the germplasm more efficiently for further apricot improve-ment,the available morphological and agronomic data of apricot were analyzed for developing a core collection.Total of 447 accessions of apricot (Armeniaca vulgaris L.) gcrmplasm collected by the Xiongyue National Germplasm Repository for Plums and Apricots and 40 agronomic traits of them were used for studying the optimal clustering method for primary core collection of apricot.The whole collection was grouped by origin locations, then based on the data of the agronomic traits, the accessions in each origin location were clustered by SPSS program.The primary core collection consisting of 111 accessions, which was 25% of the whole collection, were randomly selected by Improved Least Distance Stepwise Sampling strategy (ILDSS) form this group whole collection accessions.The genetic diversity of primary core collection were compared with the whole collection,which showed that the genetic variation in the primary core collection was well presented in the whole col-lection based on comparison of diversity index of the involved traits.
Keywords：Apricot (A rmeniaca vulgaris L)Primary core collectionClusteringGenetic diversity
Publication Date：2009-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 819-825 )