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Genet Mol Res. 2014 Apr 8;13(2):2654-68. doi: 10.4238/2014.April.8.8.

Genome-wide analysis of the homeodomain-leucine zipper (HD-ZIP) gene family in peach (Prunus persica).

Author information

1
Institute of Horticulture, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China.
2
College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu, China.
3
Department of Agricultural Technology, Kenyatta University, Nairobi, Kenya.
4
Institute of Horticulture, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China mly1008@aliyun.com.

Abstract

In this study, 33 homeodomain-leucine zipper (HD-ZIP) genes were identified in peach using the HD-ZIP amino acid sequences of Arabidopsis thaliana as a probe. Based on the phylogenetic analysis and the individual gene or protein characteristics, the HD-ZIP gene family in peach can be classified into 4 subfamilies, HD-ZIP I, II, III, and IV, containing 14, 7, 4, and 8 members, respectively. The most closely related peach HD-ZIP members within the same subfamilies shared very similar gene structure in terms of either intron/exon numbers or lengths. Almost all members of the same subfamily shared common motif compositions, thereby implying that the HD-ZIP proteins within the same subfamily may have functional similarity. The 33 peach HD-ZIP genes were distributed across scaffolds 1 to 7. Although the primary structure varied among HD-ZIP family proteins, their tertiary structures were similar. The results from this study will be useful in selecting candidate genes from specific subfamilies for functional analysis.

PMID:
24782054
DOI:
10.4238/2014.April.8.8
[Indexed for MEDLINE]
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