scholarly journals Development of a cost‐effective single nucleotide polymorphism genotyping array for management of greater yam germplasm collections

2019 ◽  
Vol 9 (10) ◽  
pp. 5617-5636 ◽  
Author(s):  
Fabien Cormier ◽  
Pierre Mournet ◽  
Sandrine Causse ◽  
Gemma Arnau ◽  
Erick Maledon ◽  
...  
2008 ◽  
Vol 54 (10) ◽  
pp. 1746-1748 ◽  
Author(s):  
Mitsuko Nakashima ◽  
Masayoshi Tsuda ◽  
Akira Kinoshita ◽  
Tatsuya Kishino ◽  
Shinji Kondo ◽  
...  

2016 ◽  
Vol 20 (3) ◽  
pp. 154-157 ◽  
Author(s):  
Wissam A. Alwazani ◽  
Rawabi Zahid ◽  
Aisha Elaimi ◽  
Osamah Bajouh ◽  
Salwa Hindawi ◽  
...  

2021 ◽  
Vol 12 ◽  
Author(s):  
Lingli Li ◽  
Yingjun Zhang ◽  
Yong Zhang ◽  
Ming Li ◽  
Dengan Xu ◽  
...  

Preharvest sprouting (PHS) significantly reduces grain yield and quality. Identification of genetic loci for PHS resistance will facilitate breeding sprouting-resistant wheat cultivars. In this study, we constructed a genetic map comprising 1,702 non-redundant markers in a recombinant inbred line (RIL) population derived from cross Yangxiaomai/Zhongyou9507 using the wheat 15K single-nucleotide polymorphism (SNP) assay. Four quantitative trait loci (QTL) for germination index (GI), a major indicator of PHS, were identified, explaining 4.6–18.5% of the phenotypic variances. Resistance alleles of Qphs.caas-3AL, Qphs.caas-3DL, and Qphs.caas-7BL were from Yangxiaomai, and Zhongyou9507 contributed a resistance allele in Qphs.caas-4AL. No epistatic effects were detected among the QTL, and combined resistance alleles significantly increased PHS resistance. Sequencing and linkage mapping showed that Qphs.caas-3AL and Qphs.caas-3DL corresponded to grain color genes Tamyb10-A and Tamyb10-D, respectively, whereas Qphs.caas-4AL and Qphs.caas-7BL were probably new QTL for PHS. We further developed cost-effective, high-throughput kompetitive allele-specific PCR (KASP) markers tightly linked to Qphs.caas-4AL and Qphs.caas-7BL and validated their association with GI in a test panel of cultivars. The resistance alleles at the Qphs.caas-4AL and Qphs.caas-7BL loci were present in 72.2 and 16.5% cultivars, respectively, suggesting that the former might be subjected to positive selection in wheat breeding. The findings provide not only genetic resources for PHS resistance but also breeding tools for marker-assisted selection.


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