作物学报2018，Vol.44Issue(1)：63-74,12.DOI:10.3724/SP.J.1006.2018.00063
引进马铃薯种质资源在干旱半干旱区的表型性状遗传多样性分析及综合评价
Genetic Diversity Analysis and Comprehensive Assessment of Phenotypic Traits in Introduced Potato Germplasm Resources in Arid and Semi-arid Area
摘要
Abstract
In China, potato is a kind of foreign crop lacking germplasm resource, especially the varieties grown in arid and semi-arid areas. Therefore, it is an effective way to rich the germplasm resource by introducing potatoes abroad. In this study, the Shannon-Wiener's diversity index and comprehensive score (F-value) were used to investigate the genetic diversity of 119 intro-duced potato clones from Peru International Potato Center about 10 phenotypic traits (emergence rate, plant height, stem diameter, leaf area, growth period, tuber number per plant, yield per plant, commodity rate, dry matter content and tuber length-width ratio). The genetic diversity of growth period was the most abundant among these phenotypic traits in 119 potato clones. Stem diameter, leaf area, growth period, tuber number per plant, yield per plant, commodity rate, dry matter content and tuber length-width ratio had significant effects on comprehensive value of phenotypic traits, and could be used to evaluate the potato germplasm resources on the drought farming. The F-value was significantly correlated with the economic characters (yield per plant, commodity rate and dry matter content), which can be used as the main evaluation index of potato germplasm resources. CIP393228.67 and CIP385561.124 in arid area and CIP304350.95, CIP392797.22, and CIP388615.22 in semi-arid area showed high and stable yield characteristics. These 119 introduced potato clones are rich in genetic diversity with good comprehensive evaluation, they could effectively complement potato germplasm resources and be beneficial to potato breeding in China.关键词
马铃薯/引进种质/表型性状/遗传多样性/综合评价/干旱半干旱区Key words
potato/introduced germplasm/phenotypic traits/genetic diversity/comprehensive assessment/arid and semi-arid area引用本文复制引用
余斌,杨宏羽,王丽,刘玉汇,白江平,王蒂,张俊莲..引进马铃薯种质资源在干旱半干旱区的表型性状遗传多样性分析及综合评价[J].作物学报,2018,44(1):63-74,12.基金项目
本研究由国家国际科技合作与交流专项(2014DFG31570)和国家现代农业产业技术体系建设专项(CARS-10-P18)资助.This study was supported by the International Science & Technology Cooperation Program of China (2014DFG31570) and China Agriculture Research System (CARS-10-P18). （2014DFG31570）
