Mapping Solanum berthaultii-based Late Blight (Phytophthora infestans) Resistance in a Diploid Population

Autor:	Norma C. Manrique-Carpintero, Felix E. Enciso-Rodríguez, Shafiqul Islam, N. Rosenzweig, Joseph Coombs, David S. Douches
Rok vydání:	2020
Předmět:	0106 biological sciences Oomycete education.field_of_study biology fungi Population food and beverages 04 agricultural and veterinary sciences Plant Science Quantitative trait locus biology.organism_classification Solanum tuberosum 01 natural sciences Horticulture Genotype Phytophthora infestans 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Blight Ploidy education Agronomy and Crop Science 010606 plant biology & botany
Zdroj:	American Journal of Potato Research. 97:596-604
ISSN:	1874-9380 1099-209X
Popis:	Late blight, caused by the oomycete Phytophthora infestans (Mont) de Bary, is the most important disease of cultivated potato (Solanum tuberosum L.). An efficient long-term strategy for controlling late blight infection involves integration of host plant resistance to disease management programs. In this study, a diploid potato population segregating for late blight resistance was generated from an interspecific cross (MSX902) between S. tuberosum x S. chacoense hybrid (84SD22) and a late blight resistant Solanum berthaultii hybrid (Ber83). A total of 129 progeny and two parents were tested for foliar resistance against the US-23 P. infestans genotype using detached-leaf bioassays and inoculated field trials (2014 and 2015). Distribution of foliar late blight resistance and susceptibility was bimodal in both types of phenotype evaluation, suggesting a major R-gene may be associated with the resistance. A major QTL for late blight resistance on chromosome 10 was detected using both detached leaf bioassay and field trial data. The SNP marker solcap_snp_c1_15219 (26.5 cM) was at the peak of the QTL. Additionally, a minor QTL on chromosomes 5 was linked to SNPs solcap_snp_c1_3793. These SNP markers closely linked to the late blight resistance QTL can be used for marker-assisted breeding.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2f97712a7f788171127f9687c13e9290 https://doi.org/10.1007/s12230-020-09808-x Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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