向日葵耐铝性的遗传变异

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2022-04-06 DOI:10.17221/110/2021-cjgpb

Vivek K. Singh, S. Chander, R. K. Sheoran, Anu, O. P. Sheoran, A. Garcia-Oliveira

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引用次数: 1

摘要

在酸性土壤地区，耐铝育种是提高田间作物生产力的重要途径，在酸性土壤区域，铝毒性似乎是影响作物生长性能的最主要因素。向日葵通常被认为对铝的毒性极为敏感；尽管没有关于评估向日葵基因型耐铝性的全面信息。在本研究中，在水培条件下，对50种向日葵基因型（组I和组II）在苗期的耐铝性进行了评估。在所研究的基因型中观察到耐铝性的显著遗传变异。总根长（TRL）和根再生（RRG）的遗传力估计值很高，遗传进展估计值也很高。聚类分析将所研究的种质中的基因型分为五个不同的组，即基因型；NDLR-06和EC-601861在铝胁迫下的根系再生方面具有高度的耐铝性。总之，这些发现揭示了向日葵耐铝性的复杂机制，可能有助于为向日葵育种中提高耐铝性寻找新的遗传资源。

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Genetic variability for aluminium tolerance in sunflower (Helianthus annuus L.)

Breeding for aluminium (Al) tolerance is a vital approach for enhancing the productivity of field crops in acidic soil regions where Al toxicity seems to be the most restraining factor for crop performance. Sunflower is generally considered extremely sensitive to Al toxicity; although no comprehensive information on the evaluation of sunflower genotypes for Al tolerance is available. In this study, 50 sunflower genotypes (set-I and set-II) were evaluated for Al tolerance at the seedling stage under hydroponic conditions. Substantial genetic variability in Al tolerance was observed among the studied genotypes. High estimates of heritability were obtained for both the total root length (TRL) and root regrowth (RRG), together with high estimates of genetic advance. A cluster analysis separated the genotypes into five different groups among the studied germplasm, the genotypes; NDLR-06 and EC-601861 were observed to be highly Al tolerant in terms of root regrowth under Al stress. In conclusion, the findings lreveal the complex mechanisms of Al tolerance in sunflower and may help to find new genetic resource for the improvement of Al tolerance in sunflower breeding.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.