Genome-wide Identification and Analysis of WOX Family Genes in Gossypium hirsutum L.

doi:10.7668/hbnxb.2017.02.004

Abstract

Abstract: The purpose of this study was to find the relevant candidate genes for development of fiber or floral organ in cotton.Based on the available genome data of cotton,the WOX gene family was identified by bioinformatics analysis.The chromosome distribution,gene and protein structures,phylogenetic relationship and gene expression patterns of this family were comprehensively compared.The results showed that a total of 37 WOX genes in cotton genome were found and then designated as GhWOX1-GhWOX37,which were distributed in 20 subgenomes except for A04,A06,A09, D04,D06 and D09.A subgenome had one more GhWOX gene than D subgenme.The multiple sequence analysis of GhWOX gene family presented the highly conserved homeodomain.Phylogenetic tree analysis showed that 37 WOX genes could be divided into Ⅰ,Ⅱ and Ⅲ subfamily and the subfamily respectively contained 23,7 and 7 WOX family genes in cotton.A Blast search on the NCBI EST database showed that 11 GhWOX genes had no matching EST sequence,and other 26 GhWOX genes were expressed in various tissues of root,stem,leaf,flower,ovule,fiber and seed.The results would be helpful for further analysis of WOX family proteins in other plants.

Key words: Cotton, WOX, Flower, Fiber development

CLC Number:

Q78
S562.03

LÜ Youjun, YANG Weijun, ZHAO Lanjie, LIU Ziyang, ZHANG Yongshan. Genome-wide Identification and Analysis of WOX Family Genes in Gossypium hirsutum L.[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2017, 32(2): 21-31. doi: 10.7668/hbnxb.2017.02.004.

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