Comparative expression analysis of five WRKY genes from Tibetan hulless barley under various abiotic stresses between drought-resistant and sensitive genotype

• Autorzy: Li H. , Guo Q. , Lan X. , Zhou Q. , Wei N.
• Języki publikacji: EN

Abstrakty

EN

Tibetan hulless barley (Hordeum vulgare subsp. vulgare) is exposed to harsh environmental factors, such as drought, salinity, and cold. To explore useful transcription factor genes that could improve stress resistance of Tibetan hulless barley varieties, five WRKY genes were isolated from drought tolerance Tibetan hulless barley genotype TR1, namely, HvvWRKY2, HvvWRKY5, HvvWRKY10, HvvWRKY19, and HvvWRKY46. The HvvWRKY46 belongs to Group I of the WRKY superfamily, whereas the remaining four belong to Group II. All of them were localized to the nucleus of onion epidermal cells. The respective expression of the five WRKY genes was compared under drought, salt, and cold stress in resistant genotype TR1 and sensitive genotype TS1. Among the five, HvvWRKY2, HvvWRKY5, HvvWRKY19, and HvvWRKY46 were induced by drought or PEG6000 stress in TR1 but not in TS1, suggesting that these four WRKY genes are involved in drought resistance. HvvWRKY2 was induced by salt stress in TR1 but not in TS1, indicating that HvvWRKY2 may be involved in salt resistance. What’s more, HvvWRKY2 were notably upregulated in TR1 under cold stress, whereas it was only induced at low level in TS1, indicating that HvvWRKY2 may also participate in cold tolerance.

• Wydawca: -
• Czasopismo: Acta Physiologiae Plantarum
• Rocznik: 2014
• Tom: 36
• Numer: 04
• Opis fizyczny: p.963-973,fig.,ref.

Twórcy

autor

Li H.

• Department of Food Science, Tibet Agricultural and Animal Husbandry College, 860000, Tibet, China
• State Key Lab for Crop Stress Biology (NWAFU), 712100 Yangling, Shaanxi, China

autor

Guo Q.

• National Key Station for Field Scientific Observation and Experiment, 860000 Nyingchi, Tibet, China
• Institute of Plateau Ecology, Tibet Agricultural and Animal Husbandry College, 860000 Nyingchi, Tibet, China

autor

Lan X.

• Department of Food Science, Tibet Agricultural and Animal Husbandry College, 860000, Tibet, China

autor

Zhou Q.

• State Key Lab for Crop Stress Biology (NWAFU), 712100 Yangling, Shaanxi, China

autor

Wei N.

• Tibet Academy of Agricultural and Animal Husbandry Sciences, 850032 Lhasa, Tibet, China

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Identyfikatory

DOI

10.1007/s11738-013-14