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Characterization and expression analysis of WOX2 homeodomain transcription factor in Aegilops tauschii Genet. Mol. Biol.
Zhao,Shan; Jiang,Qian-Tao; Ma,Jian; Wang,Ji-Rui; Liu,Ya-Xi; Chen,Guo-Yue; Qi,Peng-Fei; Pu,Zhi-En; Lu,Zhen-Xiang; Zheng,You-Liang; Wei,Yu-Ming.
The WUSCHEL (WUS)-related homeobox (WOX) gene family coordinates transcription during the early phases of embryogenesis. In this study, a putative WOX2 homolog was isolated and characterized from Aegilops tauschii, the donor of D genome of Triticum aestivum. The sequence consisted of 2045 bp, and contained an open reading frame (ORF), encoded 322 amino acids. The predicted protein sequence contained a highly conserved homeodomain and the WUS-box domain, which is present in some members of the WOX protein family. The full-length ORF was subcloned into prokaryotic expression vector pET-30a, and an approximately 34-kDa protein was expressed in Escherichia coli BL21 (DE3) cells with IPTG induction. The molecular mass of the expressed protein was identical to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: WOX2; Aegilops tauschii; Phylogenetic analysis; Real-time quantitative PCR.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572015000100079
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Genetic stability in synthetic wheat accessions: cytogenetic evaluation as a support in breeding programs Ciência Rural
Frizon,Patrícia; Brammer,Sandra Patussi; Lima,Maria Imaculada Pontes Moreira; Castro,Ricardo Lima de; Deuner,Carolina Cardoso.
ABSTRACT: Synthetic wheat is developed by crossing tetraploid species ( Triticum turgidum , AABB) with a diploid species ( Aegilops tauschii , DD), followed by chromosome duplication through the use of colchicine to restore the resultant sterile hybrid to a fertile hexaploid plant. The main importance of producing synthetically improved wheat is to increase their genetic variability and to incorporate genes that code for resistance to biotic and abiotic stressors. This study aimed to evaluate the presence of micronuclei (MN) and the meiotic index (MI) in the tetrad phase in synthetic wheat accessions and cultivars ( Triticum aestivum ) stored at the Germplasm Bank of Embrapa Trigo (Brazil), in order to identify and select genetically stable accessions for...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aegilops tauschii; Meiotic index; Micronuclei.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000400401
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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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Ocorrência de micronúcleos e inferência da instabilidade genética em acessos de trigos sintéticos. Infoteca-e
TONIAZZO, C.; BRAMMER, S. P.; CARGNIN, A.; WIETHÖLTER, P..
bitstream/item/177641/1/ID44329-2017BPDO88.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) Palavras-chave: Trigo; Wheat; Aegilops tauschii.
Ano: 2018 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1091920
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