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Acta Horticulturae Sinica ›› 2023, Vol. 50 ›› Issue (2): 421-431.doi: 10.16420/j.issn.0513-353x.2021-1034

• Research Notes • Previous Articles     Next Articles

Construction and Evaluation of Cauliflower Core Collection

WANG Mengmeng1,2, SUN Deling3, CHEN Rui2, YANG Yingxia2, ZHANG Guan1,2, LÜ Mingjie2, WANG Qian2, XIE Tianyu2, NIU Guobao3, SHAN Xiaozheng3, TAN Jin1,*(), YAO Xingwei3,*()   

  1. 1. Key Laboratory of Food Biotechnology,School of Biotechnology and Food Science,Tianjin University of Commerce,Tianjin 300134,China
    2. Institute of Germplasm Resources and Biotechnology,Tianjin Academy of Agricultural Sciences,Tianjin 300381,China
    3. Vegetable Research Institute,Tianjin Academy of Agricultural Sciences,Tianjin 300381,China
  • Received:2022-10-13 Revised:2022-11-11 Online:2023-02-25 Published:2023-03-06
  • Contact: *(E-mail:tanjin@tjcu.edu.cn,yaoxingwei99@126.com)

Abstract:

In the present study,709 inbred lines and backbone parents in cauliflower were resequenced,and their agronomic traits were analyzed. A core collection set containing 153 cauliflower lines was constructed based on the data of genotypes and 22 phenotypes. Furthermore,according to the data of phenotypic variation in these core collection,the results indicated that the percentage of mean difference was zero,the range coincidence rate was higher than 80%,and the variation rate of coefficient of variation was also commomly high. In addition,the analysis,such as phenotypic retention ratio,t test of phenotypic diversity index,t test of mean value of different traits,principal component and statistics of InDel locus counting and distribution,was carried out between the core collection and those original collection. The results confirmed that the core collection population largely represents the phenotypic and genetic diversity of the whole resource,which meets the requirements of core collection construction.

Key words: cauliflower, core collection, phenotypic trait, genetic diversity

CLC Number: