Abstract:
:Nitrogen is an important macronutrient required for plant growth, and is a limiting factor for crop productivity. Improving the nitrogen use efficiency (NUE) is therefore crucial. At present, the NUE mechanism is unclear and information on the genes associated with NUE in soybeans is lacking. cystathionine beta synthase (CBS) domain-containing proteins (CDCPs) may be implicated in abiotic stress tolerance in plants. We identified and classified a CBS domain-containing protein superfamily in soybean. A candidate gene for NUE, GmCBS21, was identified. GmCBS21 gene characteristics, the temporal expression pattern of the GmCBS21 gene, and the phenotype of GmCBS21 overexpression in transgenic Arabidopsis thaliana under low nitrogen stress were analyzed. The phenotypes suggested that the transgenic Arabidopsis thaliana seedlings performed better under the nitrogen-deficient condition. GmCBS21-overexpressing transgenic plants exhibit higher low nitrogen stress tolerance than WT plants, and this suggests its role in low nitrogen stress tolerance in plants. We conclude that GmCBS21 may serve as an excellent candidate for breeding crops with enhanced NUE and better yield.
journal_name
Int J Mol Scijournal_title
International journal of molecular sciencesauthors
Hao Q,Shang W,Zhang C,Chen H,Chen L,Yuan S,Chen S,Zhang X,Zhou Xdoi
10.3390/ijms17050620subject
Has Abstractpub_date
2016-04-26 00:00:00issue
5issn
1422-0067pii
ijms17050620journal_volume
17pub_type
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