Data/hora: 02/06/2024 04:28:25

Provedor de dados: | 74
País: | Brazil
Título: | Genome-wide association study of pre-harvest sprouting resistance in Chinese wheat founder parents
Autores: | Lin,Yu; Liu,Shihang; Liu,Yaxi; Liu,Yujiao; Chen,Guoyue; Xu,Jie; Deng,Mei; Jiang,Qiantao; Wei,Yuming; Lu,Yanli; Zheng,Youliang.
Data: | 2017-09-01
Ano: | 2017
Palavras-chave: | General linear model; Linkage disequilibrium; Marker-trait associations; Mixed linear model; Seed dormancy.
Resumo: | Abstract Pre-harvest sprouting (PHS) is a major abiotic factor affecting grain weight and quality, and is caused by an early break in seed dormancy. Association mapping (AM) is used to detect correlations between phenotypes and genotypes based on linkage disequilibrium (LD) in wheat breeding programs. We evaluated seed dormancy in 80 Chinese wheat founder parents in five environments and performed a genome-wide association study using 6,057 markers, including 93 simple sequence repeat (SSR), 1,472 diversity array technology (DArT), and 4,492 single nucleotide polymorphism (SNP) markers. The general linear model (GLM) and the mixed linear model (MLM) were used in this study, and two significant markers (tPt-7980 and wPt-6457) were identified. Both markers were located on Chromosome 1B, with wPt-6457 having been identified in a previously reported chromosomal position. The significantly associated loci contain essential information for cloning genes related to resistance to PHS and can be used in wheat breeding programs.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572017000400620
Editor: | Sociedade Brasileira de Genética
Relação: | 10.1590/1678-4685-gmb-2016-0207
Formato: | text/html
Fonte: | Genetics and Molecular Biology  v.40 n.3 2017
Fonte: | info:eu-repo/semantics/openAccess