Cargando…

Combining Protein Content and Grain Yield by Genetic Dissection in Bread Wheat under Low-Input Management

The simultaneous improvement of protein content (PC) and grain yield (GY) in bread wheat (Triticum aestivum L.) under low-input management enables the development of resource-use efficient varieties that combine high grain yield potential with desirable end-use quality. However, the complex mechanis...

Descripción completa

Detalles Bibliográficos
Autores principales: Ma, Junjie, Xiao, Yonggui, Hou, Lingling, He, Yong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8151565/
https://www.ncbi.nlm.nih.gov/pubmed/34064879
http://dx.doi.org/10.3390/foods10051058
_version_ 1783698413117767680
author Ma, Junjie
Xiao, Yonggui
Hou, Lingling
He, Yong
author_facet Ma, Junjie
Xiao, Yonggui
Hou, Lingling
He, Yong
author_sort Ma, Junjie
collection PubMed
description The simultaneous improvement of protein content (PC) and grain yield (GY) in bread wheat (Triticum aestivum L.) under low-input management enables the development of resource-use efficient varieties that combine high grain yield potential with desirable end-use quality. However, the complex mechanisms of genotype, management, and growing season, and the negative correlation between PC and GY complicate the simultaneous improvement of PC and GY under low-input management. To identify favorable genotypes for PC and GY under low-input management, this study used 209 wheat varieties, including strong gluten, medium-strong gluten, medium gluten, weak gluten, winter, semi-winter, weak-spring, and spring types, which has been promoted from the 1980s to the 2010s. Allelic genotyping, performed using kompetitive allele-specific polymerase chain reaction (KASP) technology, found 69 types of GY-PC allelic combinations in the tested materials. Field trials were conducted with two growing season treatments (2018–2019 and 2019–2020) and two management treatments (conventional management and low-input management). Multi-environment analysis of variance showed that genotype, management, and growing season had extremely substantial effects on wheat GY and PC, respectively, and the interaction of management × growing season also had extremely significant effects on wheat GY. According to the three-sigma rule of the normal distribution, the GY of wheat varieties Liangxing 66 and Xinmai 18 were stable among the top 15.87% of all tested materials with high GY, and their PC reached mean levels under low-input management, but also stably expressed high GY and high PC under conventional management, which represents a great development potential. These varieties can be used as cultivars of interest for breeding because TaSus1-7A, TaSus1-7B, TaGW2-6A, and TaGW2-6B, which are related to GY, and Glu-B3, which is related to PC, carry favorable alleles, among which Hap-1/2, the allele of TaSus1-7A, and Glu-B3b/d/g/i, the allele of Glu-B3, can be stably expressed. Our results may be used to facilitate the development of high-yielding and high-quality wheat varieties under low-input management, which is critical for sustainable food and nutrition security.
format Online
Article
Text
id pubmed-8151565
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-81515652021-05-27 Combining Protein Content and Grain Yield by Genetic Dissection in Bread Wheat under Low-Input Management Ma, Junjie Xiao, Yonggui Hou, Lingling He, Yong Foods Article The simultaneous improvement of protein content (PC) and grain yield (GY) in bread wheat (Triticum aestivum L.) under low-input management enables the development of resource-use efficient varieties that combine high grain yield potential with desirable end-use quality. However, the complex mechanisms of genotype, management, and growing season, and the negative correlation between PC and GY complicate the simultaneous improvement of PC and GY under low-input management. To identify favorable genotypes for PC and GY under low-input management, this study used 209 wheat varieties, including strong gluten, medium-strong gluten, medium gluten, weak gluten, winter, semi-winter, weak-spring, and spring types, which has been promoted from the 1980s to the 2010s. Allelic genotyping, performed using kompetitive allele-specific polymerase chain reaction (KASP) technology, found 69 types of GY-PC allelic combinations in the tested materials. Field trials were conducted with two growing season treatments (2018–2019 and 2019–2020) and two management treatments (conventional management and low-input management). Multi-environment analysis of variance showed that genotype, management, and growing season had extremely substantial effects on wheat GY and PC, respectively, and the interaction of management × growing season also had extremely significant effects on wheat GY. According to the three-sigma rule of the normal distribution, the GY of wheat varieties Liangxing 66 and Xinmai 18 were stable among the top 15.87% of all tested materials with high GY, and their PC reached mean levels under low-input management, but also stably expressed high GY and high PC under conventional management, which represents a great development potential. These varieties can be used as cultivars of interest for breeding because TaSus1-7A, TaSus1-7B, TaGW2-6A, and TaGW2-6B, which are related to GY, and Glu-B3, which is related to PC, carry favorable alleles, among which Hap-1/2, the allele of TaSus1-7A, and Glu-B3b/d/g/i, the allele of Glu-B3, can be stably expressed. Our results may be used to facilitate the development of high-yielding and high-quality wheat varieties under low-input management, which is critical for sustainable food and nutrition security. MDPI 2021-05-11 /pmc/articles/PMC8151565/ /pubmed/34064879 http://dx.doi.org/10.3390/foods10051058 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ma, Junjie
Xiao, Yonggui
Hou, Lingling
He, Yong
Combining Protein Content and Grain Yield by Genetic Dissection in Bread Wheat under Low-Input Management
title Combining Protein Content and Grain Yield by Genetic Dissection in Bread Wheat under Low-Input Management
title_full Combining Protein Content and Grain Yield by Genetic Dissection in Bread Wheat under Low-Input Management
title_fullStr Combining Protein Content and Grain Yield by Genetic Dissection in Bread Wheat under Low-Input Management
title_full_unstemmed Combining Protein Content and Grain Yield by Genetic Dissection in Bread Wheat under Low-Input Management
title_short Combining Protein Content and Grain Yield by Genetic Dissection in Bread Wheat under Low-Input Management
title_sort combining protein content and grain yield by genetic dissection in bread wheat under low-input management
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8151565/
https://www.ncbi.nlm.nih.gov/pubmed/34064879
http://dx.doi.org/10.3390/foods10051058
work_keys_str_mv AT majunjie combiningproteincontentandgrainyieldbygeneticdissectioninbreadwheatunderlowinputmanagement
AT xiaoyonggui combiningproteincontentandgrainyieldbygeneticdissectioninbreadwheatunderlowinputmanagement
AT houlingling combiningproteincontentandgrainyieldbygeneticdissectioninbreadwheatunderlowinputmanagement
AT heyong combiningproteincontentandgrainyieldbygeneticdissectioninbreadwheatunderlowinputmanagement