Evidence map›Paper›PMID 39687740›Full record

ArticleFrontiers in genetics2024

Assessment of genetic structure and trait associations of Watkins wheat landraces under Egyptian field conditions.

Ahmed Fawzy Elkot, Ahmed E Nassar, Elsayed L Elmassry, Macarena Forner-Martínez, Rajani Awal, Luzie U Wingen, Simon Griffiths, Alsamman M Alsamman, Zakaria Kehel

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Article in Frontiers in genetics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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4 · The record

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5 · Who and what money

Authors and funding

9 authors.

Ahmed Fawzy ElkotWheat Research Department, Field Crops Research Institute, Agricultural Research Center, Giza, Egypt.
Ahmed E NassarAgricultural Genetic Engineering Research Institute (AGERI), Agricultural Research Center (ARC), Giza, Egypt.
Elsayed L ElmassryWheat Research Department, Field Crops Research Institute, Agricultural Research Center, Giza, Egypt.
Macarena Forner-MartínezJohn Innes Centre, Norwich Research Park, Norwich, United Kingdom.
Rajani AwalJohn Innes Centre, Norwich Research Park, Norwich, United Kingdom.
Luzie U WingenJohn Innes Centre, Norwich Research Park, Norwich, United Kingdom.
Simon GriffithsJohn Innes Centre, Norwich Research Park, Norwich, United Kingdom.
Alsamman M AlsammanAgricultural Genetic Engineering Research Institute (AGERI), Agricultural Research Center (ARC), Giza, Egypt.
Zakaria KehelInternational Center for Agricultural Research in the Dry Areas (ICARDA), Rabat, Morocco.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Wheat landraces represent a reservoir of genetic diversity that can support wheat improvement through breeding. A core panel of 300 Watkins wheat landraces, as well as 16 non-Watkins landraces and elite wheat cultivars, was grown during the 2020-2021 and 2021-2022 seasons at four Agricultural Research Stations in Egypt, Gemmiza, Nubaria, Sakha, and Sids, to evaluate the core panel for agromorphological and yield-related traits. The genetic population structure within these genotypes were assessed using 35,143 single nucleotide polymorphisms (SNPs). Results: Cluster analyses using Discriminant Analysis of Principal Components (DAPC) and k-means revealed three clusters with moderate genetic differentiation and population structure, possibly due to wheat breeding systems and geographical isolation. The best ancestry was k = 4, but k = 2 and k = 3 were also significant. A genome-wide association study (GWAS) identified clustered marker trait associations (MTAs) linked to thousand kernel weight on chromosome 5A, plant height on chromosomes 3B and 1D, days to heading on chromosomes 2A, 4B, 5B and 1D, and plant maturity on chromosomes 3A, 2B, and 6B. In the future, these MTAs can be used to accelerate the incorporation of beneficial alleles into locally adapted germplasm through marker-assisted selection. Gene enrichment analysis identified key genes within these loci, including Reduced height-1 (Rht-A1) and stress-related genes. Conclusion: These findings underscore significant genetic connections and the involvement of crucial biological pathways.

Indexed as

agromorphological traitsgenome-wide association study (GWAS)marker trait associationspopulation structureWatkinswheat

Identifiers

PMID39687740
PMCPMC11646717

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.