草业科学2016，Vol.33Issue(3)：431-441,11.DOI:10.11829/j.issn.1001-0629.2015-0182
马铃薯种质的遗传特性与抗旱性的关系
Analyze the genetic variation and drought resistance of the potato germplasm
摘要
Abstract
To explore the relationship between potato (Solanum tuberosum )different genetic traits and its re-sponse to water stress,we analyzed the genetic diversity of test materials by the methods of SSR,studied the content variation of peroxidase (POD and CAT)activity and soluble protein of different potato varieties under water stresses by processing potato transplanting seedling for PEG-6000 simulated water stress and natural wa-ter stress method.The results showed that the genetic similarity coefficient (GS)at 0.700 level,44 potato ma-terials can be divided into five types,most breed clustered together,explaining the genetic basis of testing vari-eties is still relatively narrow.Through a GGE-biplot comprehensive analysis of soluble protein,POD and CAT variation,44 selected materials were divided into 6 groups.Comparative analysis of genetic diversity analysis and physiological results found that there were no obvious consistency between them,namely the species differences in genetic traits can’t react their drought resistance performance difference directly.But two stress modes with high consistency on studying the characteristics of varieties of drought resistance.This research provides the reference for further drought resistance research.关键词
遗传多样性/PEG 胁迫/双标图/抗旱性Key words
genetic diversity/PEG stress/GGE-biplot/drought resistance分类
农业科技引用本文复制引用
娄艳,白江平,杨宏羽,李维婷,高慧娟,张俊莲,王蒂,张金林,王旺田..马铃薯种质的遗传特性与抗旱性的关系[J].草业科学,2016,33(3):431-441,11.基金项目
科技部国际科技合作项目(2014DFG31570) （2014DFG31570）
甘肃科技基金(1308RJZA131、1308RJIA005) （1308RJZA131、1308RJIA005）
兰州科技研究项目(2013-4-156) （2013-4-156）
