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Acta Horticulturae Sinica ›› 2021, Vol. 48 ›› Issue (7): 1340-1348.doi: 10.16420/j.issn.0513-353x.2021-0206

• Research Papars • Previous Articles     Next Articles

Identification and Functional Verification of Tomato Stem Internode Length Genes IL10 and IL11

LIU Genzhong, SHI Chunmei, YU Huiyang, WANG Ying, CHEN Weifang, SHANG Lele, ZHANG Yuyang*(), YE Zhibiao   

  1. Key Laboratory of Horticultural Plant Biology,Ministry of Education,Huazhong Agricultural University,Wuhan 430070,China
  • Received:2021-04-27 Revised:2021-05-28 Online:2021-07-25 Published:2021-08-10
  • Contact: ZHANG Yuyang E-mail:yyzhang@mail.hzau.edu.cn

Abstract:

We measured and analyzed internode length at the third panicle of 266 tomato accessions. Seven QTL related to tomato internode length were identified by genome-wide association study. Candidate genes were analyzed based on the significant SNPs in chromosomes 10 and 11. The IL10(Forkhead- associated domain protein)and IL11(Auxin-regulated protein)related to the internode length were further excavated. Tomato‘Ailsa Craig’was used as the background material. 11 IL10-RNAi lines and 10 IL11-RNAi lines were obtained by Agrobacterium-mediated transformation. The internode length of IL10- and IL11-silencing transgenic lines was significantly shorter than that of the wild type. To sum up,IL10 and IL11 are the key genes that positively regulates tomato internode length.

Key words: tomato, stem, internode length, genome-wide association study, candidate gene

CLC Number: