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Genome-wide characterization and expression profiling of the relation of the HD-Zip gene family to abiotic stress in barley (Hordeum vulgare L.).

08:00 EDT 31st May 2019 | BioPortfolio

Summary of "Genome-wide characterization and expression profiling of the relation of the HD-Zip gene family to abiotic stress in barley (Hordeum vulgare L.)."

The homeodomain-leucine zipper (HD-Zip) gene family plays an important role in plant growth and environmental responses. At present, research on the HD-Zip gene family of barley is incomplete. In this study, 32 HD-Zip genes (HvHD-Zip 1-32) were identified from the barley genome and were subsequently divided into four subfamilies according to conserved structure and motif analysis. Whole genome replication events in barley and Arabidopsis, rice, and wheat HD-Zip gene families were analyzed, yielding 3, 14 and 25 gene pairs, respectively, but no segmental or tandem duplication events were identified in the barley HD-Zip gene family. Subsequently, quantitative real-time PCR (qRT-PCR) analysis revealed that the HvHD-Zip gene is sensitive to drought stress and that members of the HD-Zip I and HD-Zip IV subfamilies are generally more sensitive to abiotic stresses. Our results suggest a relationship between barley resistance and the potential key HvHD-Zip gene, which lay the foundation for further functional studies.

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This article was published in the following journal.

Name: Plant physiology and biochemistry : PPB
ISSN: 1873-2690
Pages: 250-258

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Medical and Biotech [MESH] Definitions

The determination of the pattern of genes expressed at the level of GENETIC TRANSCRIPTION, under specific circumstances or in a specific cell.

A basic-leucine zipper transcription factor that was originally described as a transcriptional regulator controlling expression of the BETA-GLOBIN gene. It may regulate the expression of a wide variety of genes that play a role in protecting cells from oxidative damage.

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The integration of exogenous DNA into the genome of an organism at sites where its expression can be suitably controlled. This integration occurs as a result of homologous recombination.

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