دورية أكاديمية

Identification of Genetic Loci and Candidate Genes Related to Grain Zinc and Iron Concentration Using a Zinc-Enriched Wheat ‘Zinc-Shakti’

التفاصيل البيبلوغرافية
العنوان: Identification of Genetic Loci and Candidate Genes Related to Grain Zinc and Iron Concentration Using a Zinc-Enriched Wheat ‘Zinc-Shakti’
المؤلفون: Nagenahalli Dharmegowda Rathan, Deepmala Sehgal, Karthikeyan Thiyagarajan, Ravi Singh, Anju-Mahendru Singh, Velu Govindan
المصدر: Frontiers in Genetics, Vol 12 (2021)
بيانات النشر: Frontiers Media S.A., 2021.
سنة النشر: 2021
المجموعة: LCC:Genetics
مصطلحات موضوعية: wheat, biofortication, zinc, breeding, QTL quantitative trait loci, Genetics, QH426-470
الوصف: The development of nutritionally enhanced wheat (Triticum aestivum L.) with higher levels of grain iron (Fe) and zinc (Zn) offers a sustainable solution to micronutrient deficiency among resource-poor wheat consumers. One hundred and ninety recombinant inbred lines (RILs) from ‘Kachu’ × ‘Zinc-Shakti’ cross were phenotyped for grain Fe and Zn concentrations and phenological and agronomically important traits at Ciudad Obregon, Mexico in the 2017–2018, 2018–2019, and 2019–2020 growing seasons and Diversity Arrays Technology (DArT) molecular marker data were used to determine genomic regions controlling grain micronutrients and agronomic traits. We identified seven new pleiotropic quantitative trait loci (QTL) for grain Zn and Fe on chromosomes 1B, 1D, 2B, 6A, and 7D. The stable pleiotropic QTL identified have expanded the diversity of QTL that could be used in breeding for wheat biofortification. Nine RILs with the best combination of pleiotropic QTL for Zn and Fe have been identified to be used in future crossing programs and to be screened in elite yield trials before releasing as biofortified varieties. In silico analysis revealed several candidate genes underlying QTL, including those belonging to the families of the transporters and kinases known to transport small peptides and minerals (thus assisting mineral uptake) and catalyzing phosphorylation processes, respectively.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1664-8021
Relation: https://www.frontiersin.org/articles/10.3389/fgene.2021.652653/full; https://doaj.org/toc/1664-8021
DOI: 10.3389/fgene.2021.652653
URL الوصول: https://doaj.org/article/fb091c8e6b84444fa7bf91e365d7ff19
رقم الأكسشن: edsdoj.fb091c8e6b84444fa7bf91e365d7ff19
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:16648021
DOI:10.3389/fgene.2021.652653