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Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology)  2016, Vol. 17 Issue (10): 763-774    DOI: 10.1631/jzus.B1500277
Articles     
A genome-wide analysis of the ASYMMETRIC LEAVES2/LATERAL ORGAN BOUNDARIES (AS2/LOB) gene family in barley (Hordeum vulgare L.)
Bao-jian Guo, Jun Wang, Shen Lin, Zheng Tian, Kai Zhou, Hai-ye Luan, Chao Lyu, Xin-zhong Zhang, Ru-gen Xu
Jiangsu Key Laboratory of Crop Genetics and Physiology / Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China; Lianyungang Agricultural Science, Lianyungang 222006, China
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Abstract  ASYMMETRIC LEAVES2/LATERAL ORGAN BOUNDARIES (AS2/LOB) genes are a family of plant specific transcription factors, which play an important role in the regulation of plant lateral organ development and metabolism. However, a genome-wide analysis of the AS2/LOB gene family is still not available for barley. In the present study, 24 AS2-like (ASL)/LOB domain (LBD) genes were identified based on the barley (Hordeum vulgare L.) genome sequence. A phylogenetic tree of ASL/LBD proteins from barley, Arabidopsis, maize, and rice was constructed. The ASL/LBD genes were classified into two classes, class I and class II, which were divided into five and two subgroups, respectively. Genes homologous in barley and Arabidopsis were analyzed. In addition, the structure and chromosomal locations of the genes were analyzed. Expression profiles indicated that barley HvASL/LBD genes exhibit a variety of expression patterns, suggesting that they are involved in various aspects of physiological and developmental processes. This genome-wide analysis of the barley AS2/LOB gene family contributes to our understanding of the functions of the AS2/LOB gene family.

Key wordsBarley      AS2/LOB gene family      Phylogenetic tree      Expression pattern     
Received: 11 November 2015      Published: 02 October 2016
CLC:  S512.3  
Cite this article:

Bao-jian Guo, Jun Wang, Shen Lin, Zheng Tian, Kai Zhou, Hai-ye Luan, Chao Lyu, Xin-zhong Zhang, Ru-gen Xu. A genome-wide analysis of the ASYMMETRIC LEAVES2/LATERAL ORGAN BOUNDARIES (AS2/LOB) gene family in barley (Hordeum vulgare L.). Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2016, 17(10): 763-774.

URL:

http://www.zjujournals.com/xueshu/zjus-b/10.1631/jzus.B1500277     OR     http://www.zjujournals.com/xueshu/zjus-b/Y2016/V17/I10/763

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