›› 2017, Vol. 29 ›› Issue (7): 1129-1138.DOI: 10.3969/j.issn.1004-1524.2017.07.10

• Horticultural Science • Previous Articles     Next Articles

Identification, evolution and expression analysis of the YABBY gene family in apple (Malus×domestica Borkh.)

SHAO Hongxia, CHEN Hongfei, ZHANG Dong, WU Haiqin, ZHAO Caiping, HAN Mingyu*   

  1. College of Horticulture, Northwest A &F University, Yangling 712100, China
  • Received:2017-02-27 Online:2017-07-20 Published:2017-07-24

Abstract: 13 Malus×domestica YABBY genes were characterized and divided into five groups (YAB1/YAB3, YAB2, INO, YAB5 and CRC). All the M. domestica YABBY genes distributed on nine chromosomes in which the sixteenth contained the maximum amount of members. The length and isoelectric points of M. domestica YABBY proteins were from 60 to 538 amino acids and 4.84 to 9.81, respectively. All the 13 M. domestica YABBY proteins had a zinc finger-like domain in the N terminus and a YABBY domain in the C terminus, and the members of one subgroup present similar gene structure and conserved protein motifs, then the cis-elements analysis found that there were many cis-elements related to stress and hormone response. Gene expression analysis indicated that most of the M. domestica YABBY genes were highly expressed in flower, fruits and leaves. Five MdYABBY genes were all greatly up-regulated during three fruit development.

Key words: apple, YABBY gene, cluster analysis, evolution, gene expression

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