Genetic dissection of grain architecture-related traits in a winter wheat population

Background: The future productivity of wheat (T. aestivum L.) as the most grown crop worldwide is of utmost importance for global food security. Thousand kernel weight (TKW) in wheat is closely associated with grain architecture-related traits, e.g. kernel length (KL), kernel width (KW), kernel area...

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Autores principales: Schierenbeck, Matías, Alqudah, Ahmad M., Lohwasser, Ulrike, Tarawneh, Rasha A., Simón, María Rosa, Börner, Andreas
Formato: Articulo
Lenguaje:Inglés
Publicado: 2021
Materias:
Ciencias Agrarias
Thousand kernel weight
Winter wheat
GWAS
Grain architecture
Candidate genes
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/136420
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-136420
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Agrarias
Thousand kernel weight
Winter wheat
GWAS
Grain architecture
Candidate genes
spellingShingle Ciencias Agrarias
Thousand kernel weight
Winter wheat
GWAS
Grain architecture
Candidate genes
Schierenbeck, Matías
Alqudah, Ahmad M.
Lohwasser, Ulrike
Tarawneh, Rasha A.
Simón, María Rosa
Börner, Andreas
Genetic dissection of grain architecture-related traits in a winter wheat population
topic_facet Ciencias Agrarias
Thousand kernel weight
Winter wheat
GWAS
Grain architecture
Candidate genes
description Background: The future productivity of wheat (T. aestivum L.) as the most grown crop worldwide is of utmost importance for global food security. Thousand kernel weight (TKW) in wheat is closely associated with grain architecture-related traits, e.g. kernel length (KL), kernel width (KW), kernel area (KA), kernel diameter ratio (KDR), and factor form density (FFD). Discovering the genetic architecture of natural variation in these traits, identifying QTL and candidate genes are the main aims of this study. Therefore, grain architecture-related traits in 261 worldwide winter accessions over three field-year experiments were evaluated. Results: Genome-wide association analysis using 90K SNP array in FarmCPU model revealed several interesting genomic regions including 17 significant SNPs passing false discovery rate threshold and strongly associated with the studied traits. Four of associated SNPs were physically located inside candidate genes within LD interval e.g. BobWhite_c5872_589 (602,710,399 bp) found to be inside TraesCS6A01G383800 (602,699,767-602,711,726 bp). Further analysis reveals the four novel candidate genes potentially involved in more than one grain architecture-related traits with a pleiotropic effects e.g. TraesCS6A01G383800 gene on 6A encoding oxidoreductase activity was associated with TKW and KA. The allelic variation at the associated SNPs showed significant differences betweeen the accessions carying the wild and mutated alleles e.g. accessions carying C allele of BobWhite_c5872_589, TraesCS6A01G383800 had significantly higher TKW than the accessions carying T allele. Interestingly, these genes were highly expressed in the grain-tissues, demonstrating their pivotal role in controlling the grain architecture. Conclusions: These results are valuable for identifying regions associated with kernel weight and dimensions and potentially help breeders in improving kernel weight and architecture-related traits in order to increase wheat yield potential and end-use quality.
format Articulo
Articulo
author Schierenbeck, Matías
Alqudah, Ahmad M.
Lohwasser, Ulrike
Tarawneh, Rasha A.
Simón, María Rosa
Börner, Andreas
author_facet Schierenbeck, Matías
Alqudah, Ahmad M.
Lohwasser, Ulrike
Tarawneh, Rasha A.
Simón, María Rosa
Börner, Andreas
author_sort Schierenbeck, Matías
title Genetic dissection of grain architecture-related traits in a winter wheat population
title_short Genetic dissection of grain architecture-related traits in a winter wheat population
title_full Genetic dissection of grain architecture-related traits in a winter wheat population
title_fullStr Genetic dissection of grain architecture-related traits in a winter wheat population
title_full_unstemmed Genetic dissection of grain architecture-related traits in a winter wheat population
title_sort genetic dissection of grain architecture-related traits in a winter wheat population
publishDate 2021
url http://sedici.unlp.edu.ar/handle/10915/136420
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