Significant associations between single nucleotide polymorphisms and photosynthetic parameters and grain yield in maize

ABSTRACT Photosynthesis is the basis of maize (Zea mays L.) grain formation. To further understand the genetic basis of maize photosynthetic parameters and clarify the relationship between maize photosynthetic parameters and grain yield (GY), identifying quantitative trait loci (QTLs) underlying pho...

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Autores principales:	Zhang,Zhenliang, Hao,Derong, Chen,Guoqing, Lu,Huhua, Shi,Mingliang, Zhou,Guangfei, Mao,Yuxiang, Huang,Xiaolan, Zhao,Junyu, Xue,Lin
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2017
Materias:	Photosynthetic parameters SNPs yield Zea mays.
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392017000300202
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spelling	oai:scielo:S0718-583920170003002022017-11-09Significant associations between single nucleotide polymorphisms and photosynthetic parameters and grain yield in maizeZhang,ZhenliangHao,DerongChen,GuoqingLu,HuhuaShi,MingliangZhou,GuangfeiMao,YuxiangHuang,XiaolanZhao,JunyuXue,Lin Photosynthetic parameters SNPs yield Zea mays. ABSTRACT Photosynthesis is the basis of maize (Zea mays L.) grain formation. To further understand the genetic basis of maize photosynthetic parameters and clarify the relationship between maize photosynthetic parameters and grain yield (GY), identifying quantitative trait loci (QTLs) underlying photosynthetic parameters and GY plays an important role in improving maize yield. In this study, a set of 260 maize accessions from different geographic origins were evaluated across three developmental stages in 2 yr to identify QTLs for photosynthetic parameters and grain yield using 2824 single-nucleotide polymorphisms (SNPs) via genome-wide association analysis. The analysis revealed that maize photosynthetic parameters are substantially correlated with GY at different developmental stages. Fourteen SNPs associated with photosynthetic parameters and GY were detected at the threshold of P ≤ 0.001 in 2 yr as well as over years. Moreover, PZE-102116144 and SYN35048 associated with stomatal conductance (gs), and PZE-101152541 associated with photosynthetic rate (PN), were identified at different developmental stages. Four loci were co-associated with two or more traits, such as PZE-101152541 was significantly co-associated with GY and PN (at 25 and 35 d after pollination [DAP]), PZE-102116144 with GY, gs (at 15 and 25 DAP), and PN (at 25 DAP), PZE-109061997 with intercellular CO2 concentration (Ci) (at 25 DAP) and transpiration rate (Tr) (at 25 DAP), PZE-110019199 with gs (at 25 DAP) and GY. Based on functional annotations, two genes were considered as potential candidate genes for the identified SNPs (PZE-101152541 and PZE-109016787). The SNPs and candidate genes identified in this study might provide instrumental information for understanding the genetic mechanism of maize photosynthetic parameters and yield.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.77 n.3 20172017-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392017000300202en10.4067/S0718-58392017000300202
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Photosynthetic parameters SNPs yield Zea mays.
spellingShingle	Photosynthetic parameters SNPs yield Zea mays. Zhang,Zhenliang Hao,Derong Chen,Guoqing Lu,Huhua Shi,Mingliang Zhou,Guangfei Mao,Yuxiang Huang,Xiaolan Zhao,Junyu Xue,Lin Significant associations between single nucleotide polymorphisms and photosynthetic parameters and grain yield in maize
description	ABSTRACT Photosynthesis is the basis of maize (Zea mays L.) grain formation. To further understand the genetic basis of maize photosynthetic parameters and clarify the relationship between maize photosynthetic parameters and grain yield (GY), identifying quantitative trait loci (QTLs) underlying photosynthetic parameters and GY plays an important role in improving maize yield. In this study, a set of 260 maize accessions from different geographic origins were evaluated across three developmental stages in 2 yr to identify QTLs for photosynthetic parameters and grain yield using 2824 single-nucleotide polymorphisms (SNPs) via genome-wide association analysis. The analysis revealed that maize photosynthetic parameters are substantially correlated with GY at different developmental stages. Fourteen SNPs associated with photosynthetic parameters and GY were detected at the threshold of P ≤ 0.001 in 2 yr as well as over years. Moreover, PZE-102116144 and SYN35048 associated with stomatal conductance (gs), and PZE-101152541 associated with photosynthetic rate (PN), were identified at different developmental stages. Four loci were co-associated with two or more traits, such as PZE-101152541 was significantly co-associated with GY and PN (at 25 and 35 d after pollination [DAP]), PZE-102116144 with GY, gs (at 15 and 25 DAP), and PN (at 25 DAP), PZE-109061997 with intercellular CO2 concentration (Ci) (at 25 DAP) and transpiration rate (Tr) (at 25 DAP), PZE-110019199 with gs (at 25 DAP) and GY. Based on functional annotations, two genes were considered as potential candidate genes for the identified SNPs (PZE-101152541 and PZE-109016787). The SNPs and candidate genes identified in this study might provide instrumental information for understanding the genetic mechanism of maize photosynthetic parameters and yield.
author	Zhang,Zhenliang Hao,Derong Chen,Guoqing Lu,Huhua Shi,Mingliang Zhou,Guangfei Mao,Yuxiang Huang,Xiaolan Zhao,Junyu Xue,Lin
author_facet	Zhang,Zhenliang Hao,Derong Chen,Guoqing Lu,Huhua Shi,Mingliang Zhou,Guangfei Mao,Yuxiang Huang,Xiaolan Zhao,Junyu Xue,Lin
author_sort	Zhang,Zhenliang
title	Significant associations between single nucleotide polymorphisms and photosynthetic parameters and grain yield in maize
title_short	Significant associations between single nucleotide polymorphisms and photosynthetic parameters and grain yield in maize
title_full	Significant associations between single nucleotide polymorphisms and photosynthetic parameters and grain yield in maize
title_fullStr	Significant associations between single nucleotide polymorphisms and photosynthetic parameters and grain yield in maize
title_full_unstemmed	Significant associations between single nucleotide polymorphisms and photosynthetic parameters and grain yield in maize
title_sort	significant associations between single nucleotide polymorphisms and photosynthetic parameters and grain yield in maize
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2017
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392017000300202
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_version_	1714205369793773568

Significant associations between single nucleotide polymorphisms and photosynthetic parameters and grain yield in maize

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