Jinkao Guo

Shijiazhuang Academy of Agriculture and Forestry Sciences

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Yanxia Wang

University of South China

Yongbin Zhou

Institute of Crop Sciences

Zhao‐Shi Xu

Chinese Academy of Agricultural Sciences

You‐Zhi Ma

Institute of Crop Sciences

Zhanliang Shi

Shijiazhuang Academy of Agriculture and Forestry Sciences

Jun Ma

China Agricultural University

Shi Zhanliang

Shijiazhuang Academy of Agriculture and Forestry Sciences

Xiaohong Chen

Sun Yat-sen University

Xihuan Li

Hebei Agricultural University

Guangyue Du

Hebei Agricultural University

Cooperative Institutions

Chinese Academy of Agricultural Sciences

Institute of Crop Sciences

Chinese Academy of Sciences

Ministry of Agriculture and Rural Affairs

Institute of Genetics and Developmental Biology

Hebei Agricultural University

Northwest A&F University

China Agricultural University

Nanjing Agricultural University

Shijiazhuang Academy of Agriculture and Forestry Sciences

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Overexpression of soybean DREB1 enhances drought stress tolerance of transgenic wheat in the field

Journal of Experimental Botany (2019)

Yongbin Zhou Ming Chen Jinkao Guo Yanxia Wang Dong-Hong Min

Abstract Drought-response-element binding (DREB)-like transcription factors can significantly enhance plant tolerance to water stress. However, most research on DREB-like proteins to date has been conducted in growth chambers or greenhouses, so there is very little evidence available to support their practical use in the field. In this study, we overexpressed GmDREB1 from soybean in two popular wheat varieties and conducted drought-tolerance experiments across a range of years, sites, and drought-stress regimes. We found that the transgenic plants consistently exhibited significant improvements in yield performance and a variety of physiological traits compared with wild-type plants when grown under limited water conditions in the field, for example showing grain yield increases between 4.79–18.43%. Specifically, we found that the transgenic plants had reduced membrane damage and enhanced osmotic adjustment and photosynthetic efficiency compared to the non-transgenic controls. Three enzymes from the biosynthetic pathway of the phytohormone melatonin were up-regulated in the transgenic plants, and external application of melatonin was found to improve drought tolerance. Together, our results demonstrate the utility of transgenic overexpression of GmDREB1 to improve the drought tolerance of wheat in the field.

Drought stress

Drought Resistance

Drought Tolerance

10.1093/jxb/erz569

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Composition analysis of HMW-GS in Australian wheat cultivars.

Agricultural Science and Technology Hunan (2011)

FU Xiao-yi Jia Dan Mengjun Li He Mingqi Shi Zhanliang

[Objective] The aim was to provide information for the breeding of wheat in China.[Method] 64 wheat cultivars from Australia were analyzed by SDS-PAGE to determine their high molecular weight(HMW) glutenin subunit combinations.Then,the cultivars had good HMW-GS were screened.[Result] A total of nine alleles were identified at Glu-1.Glu-A1 encoded two subunits,1 and null subunit,and 1 was the major type,the frequency was 59.37%;Glu-B1 encoded five subunits,7,7+8,7+9,14+15,17+ 18,and 7+8 was the major type,the frequency was 56.20%;Glu-D1 encoded two subunits,2+12,5+10,and 2+12 was the major type,the frequency was 70.30%.Furthermore,12 subunit combinations were detected,and the composition of 1,2+12,7+8 was the major type.The quality scores of these cultivars ranged from 4 to 10,with an average of 7.4.[Conclusion] The quality of these varieties was good.

Glutenin

Common wheat

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Isolation and Natural Diversity of Wheat SKC1-like Gene

Mailei zuowu xuebao (2012)

Jinkao Guo

Using rice(Oryza sativa L.) salt-tolerant gene SKC1(Shoot K+ Content) cDNA sequence(GenBank accession:DQ148410)as query,two ESTs of wheat(Triticum aestivum L.)(GenBank accession: DR734861,CK193616)were identified by searching GenBank database.Aegilops squarrosa SKC1-like gene(AeSKC1) was isolated by screening AL8/78 BAC library and BAC sequencing according to wheat EST-DR734861.Using gene-specific primers based on AeSKC1 sequence,wheat SKC1-like gene(TaSKC1) was cloned.Study on the natural diversity of TaSKC1 of synthetic double-diploids,landraces and varieties showed that bottleneck effect was clear in the domestication of TaSKC1 and TaSKC1 belonged to domestication gene.

Gene bank

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Improvement on Mixograph test through water addition and parameter conversions

Journal of Integrative Agriculture (2015)

Jiazhu Sun Wenlong Yang Dongcheng Liu Juntao Zhao Guangbin Luo

To improve Mixograph testing effect, Farinograph measurements were adopted as a quality standard and changes in water absorption and parameter conversion in Mixograph test were explored. Comparative study showed that increasing water absorption to about 73% and converting original parameters to compound parameters in Mixograph tests significantly increased their predictive power for flour quality. These efforts also enabled the adoption of fixed water addition level in Mixograph test and simplified the test procedure significantly. With the success in parameter conversions, Mixograph test results were successfully described by Farinograph parameters, which allow breeders to compare and exchange test results easily. All these changes optimized the official method of Mixograph test with simplified procedure and enhanced reliability and made the Mixograph being the superior tool for quality assessment in wheat-breeding programs.

10.1016/s2095-3119(15)61078-4

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