Genomewide analysis of homeobox gene family in apple (Malus domestica Borkh.) and their response to abiotic stress

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dc.contributor.authorLi, Rongen_US
dc.contributor.authorGe, Hongjuanen_US
dc.contributor.authorDai, Yaqingen_US
dc.contributor.authorYuan, Lien_US
dc.contributor.authorXin Liuen_US
dc.contributor.authorSun, Qinghuaen_US
dc.contributor.authorWang, Xiaoyunen_US
dc.date.accessioned2020-11-18T10:20:44Z
dc.date.available2020-11-18T10:20:44Z
dc.date.issued2019-02
dc.description.abstractHomeobox proteins (HOXs) comprise a large family in eukaryotes and share a highly conserved DNA-binding motif, the homeodomain (HD). HOXs play an important role in the regulation of plant growth, development and stress response. However, systematic analysis and expression profiling of these genes have not been reported in Malus domestica. In this study, a total of 207 HOXs of M. domestica (MdHOXs) were identified and classified into 11 distinct subfamilies, and an unclassified group according to their functional domains. The MdHOXs were localized in all 17 chromosomes with various densities and a majority of them tended to form gene clusters. Analysis of the Ka/Ks ratios suggested that the duplicated genes of MdHOXs mainly underwent purifying selection with restrictive functional divergence after the duplication events. The expression of MdHOXs has organ specific characteristics and were divided into seven different groups. Stress-related cis-acting elements were prevalent in the upstream sequence of MdHOXs by systematic analysis. To explore the response to abiotic stress, eight MdHOXs were randomly selected to investigate their expression using quantitative real-time polymerase chain reaction. Transcription levels of MdHOXs were upregulated in the leaves and roots under cold, osmotic, high salinity or exogenous ABA treatments, which suggested that they may take part in the plant response to abiotic stress. These results provided basic information of HOXs in apple and will further contribute to the functional research of MdHOXs, especially the response to abiotic stress.en_US
dc.identifier.affiliationsCollege of Life Science, State Key Laboratory of Crop Biology, Shandong Agricultural University, Taian 271018, Shandong, People’s Republic of Chinaen_US
dc.identifier.affiliationsQingdao Academy of Agricultural Science, Qingdao 266100, Shandong, People’s Republic of Chinaen_US
dc.identifier.citationLi Rong, Ge Hongjuan, Dai Yaqing, Yuan Li, Xin Liu, Sun Qinghua, Wang Xiaoyun. Genomewide analysis of homeobox gene family in apple (Malus domestica Borkh.) and their response to abiotic stress. Journal of Genetics. 2019 Feb; 98: 1-11en_US
dc.identifier.issn0022-1333
dc.identifier.issn0973-7731
dc.identifier.placeIndiaen_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/215373
dc.languageenen_US
dc.publisherIndian Academy of Sciencesen_US
dc.relation.volume98en_US
dc.source.urihttps://www.ias.ac.in/article/fulltext/jgen/098/0013en_US
dc.subjecthomeoboxen_US
dc.subjectappleen_US
dc.subjectexpression patternen_US
dc.subjectstress-related cis-acting element analysisen_US
dc.subjectabiotic stressen_US
dc.titleGenomewide analysis of homeobox gene family in apple (Malus domestica Borkh.) and their response to abiotic stressen_US
dc.typeJournal Articleen_US
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