Identification and molecular genetic mapping of Chili veinal mottle virus (ChiVMV) resistance genes in pepper (Capsicum annuum)

Chili veinal mottle virus (ChiVMV) threatens the agricultural production of peppers ( Capsicum annuum ) in Asia and Africa. In this study, we evaluated ChiVMV resistance in the four pepper varieties CV3, CV4, CV8, and CV9. Segregation analyses revealed that CV3 and CV8 contain the single dominant re...

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Bibliographic Details
Published in:Molecular breeding 2017-10, Vol.37 (10), p.1-10, Article 121
Main Authors: Lee, Joung-Ho, An, Jeong-Tak, Siddique, Muhammad Irfan, Han, Koeun, Choi, Seula, Kwon, Jin-Kyung, Kang, Byoung-Cheorl
Format: Article
Language:English
Subjects:
Agricultural production
Biomedical and Life Sciences
Biotechnology
Capsicum annuum
Chromosome 6
Chromosomes
Disease resistance
Gene mapping
Genes
Genotyping
Life Sciences
Loci
Mapping
Markers
Molecular biology
Peppers
Plant biology
Plant Genetics and Genomics
Plant Pathology
Plant Physiology
Plant Sciences
Single-nucleotide polymorphism
Vegetables
Viruses
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Summary:Chili veinal mottle virus (ChiVMV) threatens the agricultural production of peppers ( Capsicum annuum ) in Asia and Africa. In this study, we evaluated ChiVMV resistance in the four pepper varieties CV3, CV4, CV8, and CV9. Segregation analyses revealed that CV3 and CV8 contain the single dominant resistance gene Cvr1 , and CV9 contains the single recessive resistance gene cvr4 . SNP markers were developed and used to map the Cvr1 gene in CV3 to the short arm of chromosome 6 where NLR genes are clustered. In CV4 oligogenic resistance loci were detected. A genotyping-by-sequencing (GBS) combined with modified sliding window approach mapped two resistance loci, to chromosomes 6 and 10. The development of SNP markers and the resulting knowledge of genomic positioning will assist in breeding ChiVMV-resistant pepper varieties and in the fine mapping of ChiVMV resistance genes.
ISSN:1380-3743
1572-9788
DOI:10.1007/s11032-017-0717-6