中国李种质资源形态性状和农艺性状的遗传多样性分析  

Genetic Diversity Analysis of Morphological and Agronomic Characters of Chinese plum(Prunus salicina Lindl.)Germplasm

作　　者：郁香荷[1] 章秋平[1] 刘威生[1] 孙猛[1] 刘宁[1] 张玉萍[1] 徐铭[1] 

机构地区：[1]辽宁省果树科学研究所,熊岳115009

出　　处：《植物遗传资源学报》2011年第3期402-407,共6页Journal of Plant Genetic Resources

基　　金：国家科技基础条件平台重点项目(2005DKA21002-19);作物种质资源保护项目(NB08-2130135-03)

摘　　要：以国家果树种质熊岳李杏圃中保存的405份中国李和杂种李为材料,依据32个主要形态性状和农艺性状的评价数据,对这些主要性状进行了遗传多样性、相关性和主成分分析。结果表明,中国李表现出丰富的遗传多样性;从字符型形态和农艺性状数据看,叶形、果形、果皮彩色和果肉色泽等性状均表现出较为丰富的多样性;从数值型形态和农艺性状数据看,各性状的变异系数为47.09%~14.85%;其中单果重的变异系数最大,为47.09%,其变幅为4.50~107.90g,其次是维生素C含量,变异系数为40.44%,变幅为0.80~14.70mg/100g;相关性分析得出,节间长度与一年生枝条长度和可溶性糖含量呈正相关,果实发育期与可溶性固形物和可溶性糖含量也呈正相关,而与可滴定酸和维生素C含量呈负相关。405 accessions of Chinese plum resources and hybrids from National Germplasm Repository for Plums and Apricots,Xiongyue were taken as materials.The genetic diversity,correlation and principal components were analyzed,based on the evaluation of 32 morphological and agronomic traits of them.The results showed that the genetic diversity of Chinese plums distributed widely.The genetic diversity of the shape of leaf and fruit,the color of fruit skin and flesh behaved more various according to the character type data of morphological and agronomic traits.And to numerical type data,the coefficient of variation of the traits were from 47.09% to 14.85%,among them the coefficient of variation of single fruit weight was 47.09%,ranged from 4.50g to 107.90g;followed by vitamin C content with 40.44% variation from 0.80mg/100g to 14.70mg/100g.The correlation analysis showed that there were the positive correlations of internodes＇ length with shoots length and soluble sugar content,and the same as fruit developed period with soluble solids content and soluble sugar content,whereas the negative correlations with titratable acid content and vitamin C content.

关 键 词：中国李 遗传多样性 相关性 

分 类 号：S662.3[农业科学—果树学]