The potatoR10resistance specificity to late blight is conferred by both a single dominantRgene and quantitative trait loci

Autor:	Chun-Song Bian, Jianfei Xu, Liping Jin, Dongyu Qu, Sanwen Huang, Shaoguang Duan, Pang Wanfu, Jie Liu, Jiajia Wang
Rok vydání:	2013
Předmět:	Genetics education.field_of_study biology fungi Population food and beverages Locus (genetics) Plant Science R gene Quantitative trait locus biology.organism_classification Gene mapping Phytophthora infestans Blight education Agronomy and Crop Science Gene
Zdroj:	Plant Breeding. 132:407-412
ISSN:	0179-9541
Popis:	The R10 late blight differential of potato, 3681ad1, exhibits good field resistance. Progeny from the cross between 3681ad1 and the susceptible cultivar ‘Katahdin’ were assessed for late blight resistance to three Phytophthora infestans isolates, using a detached leaf assay. Progeny differed in response to the three isolates. Resistance to isolates IPO-0 and 99018 was controlled by quantitative trait loci (QTL), whereas resistance to isolate 89148-9 was inherited as a dominant R gene, designated as R10 in this study. Statistical analysis revealed that one of the resistance QTLs to isolates IPO-0 and 99018 is linked to the R10 gene, which maps to chromosome 11 in a region where a complex late blight resistance locus has been reported previously. A high-resolution map of R10 was constructed using a large segregating population, and the gene was delimited to a genetic interval of 0.26 cM. The clustering of the qualitative gene R10 with resistance QTLs could explain the field resistance observed with 3681ad1.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::272f50ec4798589a3e61e6af0d0c1aa2 https://doi.org/10.1111/pbr.12075 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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