&nbsp;Genome-Wide Identification and Expression Analysis under Fusarium
 graminearum Stress of Chitinase Gene Family in Triticum aestivum L．

XU Wu, LIU Jianfeng, ZHANG Ge, XU Wen, YUAN Zuli

doi:10.15933/j.cnki.1004-3268.2019.11.002

Journal of Henan Agricultural Sciences >

2019 , Vol. 48 >Issue 11: 7 - 17

DOI: https://doi.org/10.15933/j.cnki.1004-3268.2019.11.002

Crop Cultivation & Genetic Breeding

Genome-Wide Identification and Expression Analysis under Fusarium graminearum Stress of Chitinase Gene Family in Triticum aestivum L．

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( 1.College of Life Science,Henan Agricultural University,Zhengzhou 450002,China; 2.Agricultural Economy＆Information Ｒesearch Institute,Henan Academy of Agricultural Sciences,Zhengzhou 450002,China; 3.Crop Designing Centre,Henan Academy of Agricultural Sciences,Zhengzhou 450002,China)

Received date: 2019-05-10

Online published: 2019-11-15

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Abstract

The members of wheat chitinase gene family were identified,and their gene structure,conserved motif,chromosome distribution,systematic evolution and expression level under Fusarium graminearum stress were analyzed,so as to lay a foundation for further study of chitinase genes function under various biotic stres ses and molecular breeding for disease resistance in wheat. The results showed that a total of 159 chitinase genes were identified，which were distributed on 21 chromosomes in wheat genome,and divided into two sub families,GH-18 and GH-19.The GH-18 subfamily consisted of Ⅲ and Ⅴ classes,which contained 34 and 48 genes,respectively.GH-19 subfamily was composed ofⅠ,Ⅱ and Ⅳ classes,which contained 52,13 and 12 genes,respectively.Members of the same subfamily were clustered on the same branch,and had similar exon intron gene structures and conserved motifs.The expression levels of some chitinase genes were up-regulated after Fusarium graminearum inoculation in four wheat genotypes．

Key words： Wheat (Triticum aestivum L.); Chitinase gene family; Genome-wide identification; Fusari um graminearum; Expression pattern

Cite this article

XU Wu, LIU Jianfeng, ZHANG Ge, XU Wen, YUAN Zuli . Genome-Wide Identification and Expression Analysis under Fusarium graminearum Stress of Chitinase Gene Family in Triticum aestivum L．[J]. Journal of Henan Agricultural Sciences, 2019 , 48(11) : 7 -17 . DOI: 10.15933/j.cnki.1004-3268.2019.11.002

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