EXPRESSION ANALYSIS OF DEHYDRINS GENE FAMILY IN BARLEY TOLERANT AND SENSITIVE CULTIVARS AND WILD GENOTYPE UNDER DROUGHT CONDITIONS

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ABEDINI RAHA; SHAHBAZI MARYAM; SHOBBAR ZAHRA SADAT; PISHKAM RAD REIHANEH; EBRAHIMI ASA

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Journal: Journal of Plant Biological Sciences Year:2012 | Volume:4 | Issue:11 Page(s): 39-46

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Title

EXPRESSION ANALYSIS OF DEHYDRINS GENE FAMILY IN BARLEY TOLERANT AND SENSITIVE CULTIVARS AND WILD GENOTYPE UNDER DROUGHT CONDITIONS

Author(s)

Keywords

BARELYQ2

DEHYDRINQ1

DROUGHT TOLERANCEQ2

GENE EXPRESSIONQ2

SPONTANEUMQ2

Abstract

Dehydrins are known as late-embryogenesis abundant (LEA) proteins Group II, which are accumulated during low-temperature or water-deficit conditions. They are asumed to play a role in freezing and drought-tolerance in plants. In order to study the impact of DEHYDRINs in response of tolerant and sensitive genotypes to drought, one experiment was carried out in a factorial design based on CRD for a wild ecotype and two barley cultivars in greenhouse. The barley cultivars including Yusef (HV1) and Morocco (HV2) and wild ecotype (HS) were as the first factor and irrigation treatment with three levels consisted of normal (70% of water holding capacity of soil), mild stress (30%) and severe stress (10%) was as the second factor. Normal irrigation was continued in two leaf stage and then discontinued for plants under stress to achieve certain level of stress. The samples were collected from the expanded leaves in vegetative stage for physiological and molecular analysis. Analysis of variance for physiological characteristics showed that the effect of water stress on all traits and differences between genotypes were significant, and HV2 had significantly lower dry mater production and relative water content than the other genotypes. Based on the real time PCR results, among 13 barley DEHYDRIN genes, except for Dhn8 and Dhn13, expression of other genes significantly upregulated under severe drought condition. The expression level of Dhn3, Dhn7, Dhn9 and Dhn10 was increased in the tolerant genotypes, HV1 and HS, whereas the expression level of Dhn1 and the other genes increased only in Yusof and HS, respectively that was indicative of the role of DEHYDRIN genes in DROUGHT TOLERANCE. The increase of Dhn12 expression level in wild ecotype through drought condition is reported for the first time in the current study.

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References

EVALUATION OF GENOTYPES OF WILD BARLEY (HORDEUM SPONTANEUM) BASED ON DROUGHT TOLERANCE INDICES

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APA: Copy

ABEDINI, RAHA, SHAHBAZI, MARYAM, SHOBBAR, ZAHRA SADAT, PISHKAM RAD, REIHANEH, & EBRAHIMI, ASA. (2012). EXPRESSION ANALYSIS OF DEHYDRINS GENE FAMILY IN BARLEY TOLERANT AND SENSITIVE CULTIVARS AND WILD GENOTYPE UNDER DROUGHT CONDITIONS. IRANIAN JOURNAL OF PLANT BIOLOGY, 4(11), 39-46. SID. https://sid.ir/paper/159978/en

Vancouver: Copy

ABEDINI RAHA, SHAHBAZI MARYAM, SHOBBAR ZAHRA SADAT, PISHKAM RAD REIHANEH, EBRAHIMI ASA. EXPRESSION ANALYSIS OF DEHYDRINS GENE FAMILY IN BARLEY TOLERANT AND SENSITIVE CULTIVARS AND WILD GENOTYPE UNDER DROUGHT CONDITIONS. IRANIAN JOURNAL OF PLANT BIOLOGY[Internet]. 2012;4(11):39-46. Available from: https://sid.ir/paper/159978/en

IEEE: Copy

RAHA ABEDINI, MARYAM SHAHBAZI, ZAHRA SADAT SHOBBAR, REIHANEH PISHKAM RAD, and ASA EBRAHIMI, “EXPRESSION ANALYSIS OF DEHYDRINS GENE FAMILY IN BARLEY TOLERANT AND SENSITIVE CULTIVARS AND WILD GENOTYPE UNDER DROUGHT CONDITIONS,” IRANIAN JOURNAL OF PLANT BIOLOGY, vol. 4, no. 11, pp. 39–46, 2012, [Online]. Available: https://sid.ir/paper/159978/en

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