Crop Cultivation & Genetic Breeding

 Genome-Wide Identification and Expression Analysis of TCP Gene Family in Sorghum bicolor L.

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  •  (College of Life Science,Luoyang Normal University,Luoyang 471934,China)

Received date: 2019-06-16

  Online published: 2019-10-15

Abstract

 In order to study the function of TCP(Teosinte-branched 1/cycloidea/proliferating cell fac tors) gene family of Sorghum bicolor L.in growth and response to adversity stress,the SbTCP genes were identified by bioinformatic analysis,and their conserved domain,phylogenetic relationship,chromosome lo cation,conserved domain and expression pattern were analyzed.The results showed that a total of 27 SbTCP genes were identified,they were unevenly distributed across 9 chromosomes,and there were gene clusters on 3,6,9 chromosomes.All the SbTCP proteins could be divided into two groups,Class Ⅰ and Class Ⅱ,and Class Ⅱ could be divided into two subgroups,CIN and CYC/TB1.Class Ⅰ contained 10 SbTCP proteins,CYC/TB1 contained 3 SbTCP proteins,and CIN contained 14 SbTCP proteins.Twenty seven SbTCP proteins all had atypical bHLH(Basic-helix-loop-helix) conserved region,and two SbTCP proteins had R domain.Transcriptome analysis showed that most of SbTCP genes expressed in seed,em bryo,pistil and early inflorescence; the expression level of most of SbTCP genes increased in roots under PEG treatment,and the expression level of several SbTCP genes increased in shoots under ABA treat ment,which suggested that SbTCP genes might play important role in response to drought stress.

Cite this article

ZHENG Ling, BAI Xueting, LI Huiyun .  Genome-Wide Identification and Expression Analysis of TCP Gene Family in Sorghum bicolor L.[J]. Journal of Henan Agricultural Sciences, 2019 , 48(10) : 30 -36 . DOI: 10.15933/j.cnki.1004-3268.2019.10.005

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