Journal of Northern Agriculture ›› 2020, Vol. 48 ›› Issue (3): 1-9.doi: 10.12190/j.issn.2096-1197.2020.03.01

• Germplasm resources·Molecular biology •     Next Articles

Genetic diversity analysis of phenotype traits of spring wheat parental resources in Inner Mongolia

CUI Guohui1, YE Jun1,2, WU Xiaohua1, YANG Lei3, WANG Xiaobing1, TAN Liping4, YU Meiling1, ZHAO Chunzhi3, ZHANG Chunyan5, ZHANG Haibin1, WU Yunxia1, LI Yuanqing1   

  1. 1. Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences,Hohhot 010031,China;
    2. College of Agronomy,Hebei Agricultural University,Baoding 071001,China;
    3. Wheat Institute,Bayannur Academy of Agricultural and Animal Husbandry Sciences,Linhe 015000,China;
    4. Sunflower Institute,Chifeng Academy of Agricultural and Animal Husbandry Sciences,Chifeng 024000,China;
    5. Test Station,Labu Dalin Farming and Pasture in Inner Mongolia,Ergun 022250,China
  • Received:2010-04-02 Online:2020-06-20 Published:2020-08-14

Abstract: 【Objective】To clarify the genetic diversity of spring wheat parent resources and improve the utilization efficiency of breeding parents in Inner Mongolia.【Methods】The genetic diversity of phenotypic traits of 70 breeding parental resources from Inner Mongolia in recent years was analyzed by using a completely random block design.【Results】The parental resources of different ecological areas in eastern and western Inner Mongolia were significantly different among species and locations (P<0.01).The diversity index of phenotypic traits ranged from 1.72 to 2.08,and the diversity index of 1 000-grain weight was the largest(2.08).The diversity index of the growth period was the lowest(1.72).That of other phenotypic traits was in the middle.Correlation analysis showed that yield per plant was positively correlated with 1 000-grain weight (P<0.001),but negatively correlated with quality-related traits.Cluster analysis was performed on 70 parental resources based on phenotypic traits.At the chi-square distance of 3.0,70 parent resources could be divided into 4 groups.The fourth group could be divided into two subgroups,and the main difference was in quality character.【Conclusion】The characters of 70 parental resources of quinoa had abundant variation and extensive diversity.It could provide important reference for the selection and matching of targeted parental resources with different breeding objectives by genetic diversity analysis.

Key words: Inner Mongolia, Spring wheat, Parental resources, Phenotypic traits, Genetic diversity, Clustering analysis

CLC Number: 

  • S512