期刊
FUNCTIONAL & INTEGRATIVE GENOMICS
卷 20, 期 4, 页码 537-550出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s10142-020-00733-0
关键词
TCP gene family; Legume; Phylogeny analysis; Expression analysis; Abiotic stress
资金
- National and Science Foundation of China [31770575, 31972507]
- National Major Project for Cultivation of Transgenic Crops [2016ZX08004-002-003]
- National Key Research and Development Program of China [2017YFD0101303]
- Graduate Innovation Fund of Harbin Normal University [HSDBSCX2016-4]
The teosinte branched1, cycloidea, and proliferating cell factor family (TCP) proteins, plant-specific transcription factors, are involved in the regulation of plant development; however, the TCP gene family of legumes has been based primarily on a single crop. Here, a total of 55, 22, 26, 21, and 25 genes containing the VQ motif were identified from the genomes of Glycine max, Cicer arietinum, Phaseolus vulgaris, Medicago truncatula, and Lotus japonicus, respectively. Based on the phylogenetic analysis, we divided these TCP genes into three distinct subfamilies: PCF, CYC/TB1, and CIN. The conserved domain analysis indicated that the TCP gene family members contain the bHLH and R domains. The TCP genes from the same evolutionary branches of legumes shared similar motifs and structures. The promoter analysis revealed that cis-elements were related to stress responses, phytohormone responses, and physical and reproductive growth regulation. In addition, the TCP genes presented different expression patterns in the five legumes. Most of them showed specific expression patterns during development. The results of qRT-PCR indicated that the TCP genes played regulatory roles in both salt and drought stresses. The present study provides novel and detailed information regarding the legume TCP gene family, which aids in functional characterisation of the TCP genes in other plants.
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