Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2020, Vol. 41 ›› Issue (11): 2149-2155.DOI: 10.3969/j.issn.1000-2561.2020.11.002

• Omics & Biotechnology • Previous Articles     Next Articles

Association Studies of Plant Architecture Traits and SSR Markers in Nelumbo Adans.

YANG Dan,DU Fengfeng,CHANG Yajun,CUI Jian,SUN Linhe,LIU Xiaojing(),YAO Dongrui()   

  1. Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, Jiangsu 210014, China
  • Received:2019-11-11 Revised:2020-03-23 Online:2020-11-25 Published:2020-12-23
  • Contact: LIU Xiaojing,YAO Dongrui


Totally 129 lotus accessions with different architecture were used as the experimental material. The leaf height, flower height and leaf diameter were determined. The accessed lotus population had diverse plant architecture traits. Variation coefficient for leaf height and flower height was 39.68% and 41.69% respectively, and variation coefficient for leaf length and width was 29.70% and 31.41% respectively. 129 lotus accessions were genotyped with 98 pair polymorphic SSR primers. Population structure of lotus accessions was analyzed using the STRUCTURE V2.2 software. Association analysis of lotus architecture traits was performed with the GLM model. The results indicated that lotus accessions were divided into four subgroups. The results distinctly grouped lotus accessions from Chinese lotus and Sino-American hybrids into different clusters. However, the hybrids dispersed among clusters. The results showed that 11 SSR markers were associated with leaf height, flower height, leaf length and width; three markers were associated with all the plant architecture traits, and that might be caused by multiple effects of one gene or genetic linkage. In two years of repeated tests, two markers (SSR132 and SSR458) can be associated with leaf length and width, indicating that these two markers may be less affected by environment.

Key words: Nelumbo, plant architecture, population structure, association analysis

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