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Genome-wide association study of drought-related resistance traits in Aegilops tauschii Genet. Mol. Biol.
Qin,Peng; Lin,Yu; Hu,Yaodong; Liu,Kun; Mao,Shuangshuang; Li,Zhanyi; Wang,Jirui; Liu,Yaxi; Wei,Yuming; Zheng,Youliang.
Abstract The D-genome progenitor of wheat (Triticum aestivum), Aegilops tauschii, possesses numerous genes for resistance to abiotic stresses, including drought. Therefore, information on the genetic architecture of A. tauschii can aid the development of drought-resistant wheat varieties. Here, we evaluated 13 traits in 373 A. tauschii accessions grown under normal and polyethylene glycol-simulated drought stress conditions and performed a genome-wide association study using 7,185 single nucleotide polymorphism (SNP) markers. We identified 208 and 28 SNPs associated with all traits using the general linear model and mixed linear model, respectively, while both models detected 25 significant SNPs with genome-wide distribution. Public database searches...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aegilops tauschii; Drought resistance; Genome-wide association study; Single nucleotide polymorphism; Wheat.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572016000300398
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Tamanho amostral e detecção de genes via GWAS em características quantitativas do cafeeiro. Infoteca-e
RESENDE, M. D. V. de; OLIVEIRA, A. C. B. de; CAIXETA, E. T.; ALKIMIM, E. R.; SOUSA, T. V.; PEREIRA, A. A.; ALVES, R. S.; AZEVEDO, C. F..
O presente documento refere-se à avaliação prática do potencial da GWAS no melhoramento dos cafeeiros das espécies Coffea arabica e Coffea canephora. O objetivo geral é orientar a aplicação eficiente da GWAS em características produtivas, agronômicas e de resistência a doenças e pragas do cafeeiro. Para isso, um novo método para o estudo de associações genômicas foi desenvolvido e avaliado via simulação, em termos de poder de detecção de genes. O objetivo específico é possibilitar a identificação de marcadores genéticos úteis ao melhoramento do cafeeiro.
Tipo: Folhetos Palavras-chave: Melhoramento Genético Vegetal; Seleção Genética; Cafeicultura; Coffea Arábica; Coffea Canephora; Genome-wide association study; Plant breeding.
Ano: 2022 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1142431
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Association mapping of drought tolerance indices in wheat: QTL-rich regions on chromosome 4A Scientia Agricola
Ballesta,Paulina; Mora,Freddy; Del Pozo,Alejandro.
ABSTRACT Drought is likely the main abiotic stress that affects wheat yield. The identification of drought-tolerant genotypes represents an effective way of dealing with the continuous decrease in water resources as well as the increase in world population. The aim of this study was to identify single nucleotide polymorphisms (SNP) associated with drought tolerance indices in wheat by using a genome-wide association study (GWAS) under fully irrigated and rain-fed conditions. The drought tolerance indices (i.e., Stress Susceptibility Index, Stress Tolerance Index, Tolerance Index and Yield Stability Index) were calculated based on grain yield, 1,000-kernel weight and kernels per spike. The association panel was genotyped using genotyping-by-sequencing...
Tipo: Info:eu-repo/semantics/article Palavras-chave: SNP markers drought; Genome-wide association study; Rain-fed conditions.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162020000201101
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การศึกษารูปแบบความเชื่อมโยงในจีโนมของลักษณะทางกายวิภาคของรากข้าว Thai Agricultural
Phanchita Vejchasarn; Meredith Hanlon; Susan McCouch; Jonathan Lynch; Kathleen Brown.
Root anatomical traits, which include cortical area, aerenchyma area, and xylem features, influence the absorption and translocation of water and nutrients, oxygen transport and the mechanical strength of the root system. While a number of studies have shown promising functional benefits of anatomical root traits in conferring resource acquisition efficiency, very little is known about the genetic mechanisms underlying natural phenotypic variation of these traits. In this study, we evaluated 336 Oryza sativa accessions selected from the rice diversity panel for 4 root anatomical traits including, root cross-section area, aerenchyma, and xylem features in well-controlled greenhouse environment. Considerable phenotypic variation was observed in all root...
Tipo: Collection Palavras-chave: Rice; Root anatomical traits; Genome-wide association study; ข้าว; ลักษณะทางกายวิภาค; การศึกษารูปแบบความเชื่อมโยงในจีโนม.
Ano: 2015 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5918
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การศึกษารูปแบบความเชื่อมโยงในจีโนมของลักษณะทางกายวิภาคของรากข้าว Thai Agricultural
Phanchita Vejchasarn; Meredith Hanlon; Susan McCouch; Jonathan Lynch; Kathleen Brown.
Root anatomical traits, which include cortical area, aerenchyma area, and xylem features, influence the absorption and translocation of water and nutrients, oxygen transport and the mechanical strength of the root system. While a number of studies have shown promising functional benefits of anatomical root traits in conferring resource acquisition efficiency, very little is known about the genetic mechanisms underlying natural phenotypic variation of these traits. In this study, we evaluated 336 Oryza sativa accessions selected from the rice diversity panel for 4 root anatomical traits including, root cross-section area, aerenchyma, and xylem features in well-controlled greenhouse environment. Considerable phenotypic variation was observed in all root...
Tipo: Collection Palavras-chave: Rice; Root anatomical traits; Genome-wide association study; ข้าว; ลักษณะทางกายวิภาค; การศึกษารูปแบบความเชื่อมโยงในจีโนม.
Ano: 2016 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5860
Registros recuperados: 5
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