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Title 

Molecular mapping and characterization of a single dominant gene controlling CMV resistance in peppers (Capsicum annuum L.)

Authors 

W H KangN H HoangH B YangJ K KwonJo Sung HwanJ K SeoK H KimD ChoiB C Kang

Publisher 

Springer Verlag (Germany)

Issue Date 

2010

Citation 

Theoretical and Applied Genetics, vol. 120, no. 8, pp. 1587-1596

Abstract 

Cucumber mosaic virus (CMV) is one of the most destructive viruses in the Solanaceae family. Simple inheritance of CMV resistance in peppers has not previously been documented; all previous studies have reported that resistance to this virus is mediated by several partially dominant and recessive genes. In this study, we showed that the Capsicum annuum cultivar 'Bukang' contains a single dominant resistance gene against CMVKorean and CMVFNY strains. We named this resistance gene Cmr1 (Cucumber mosaic resistance 1). Analysis of the cellular localization of CMV using a CMV green fluorescent protein construct showed that in 'Bukang,' systemic movement of the virus from the epidermal cell layer to mesophyll cells is inhibited. Genetic mapping and FISH analysis revealed that the Cmr1 gene is located at the centromeric region of LG2, a position syntenic to the ToMV resistance locus (Tm-1) in tomatoes. Three SNP markers were developed by comparative genetic mapping: one intron-based marker using a pepper homolog of Tm-1, and two SNP markers using tomato and pepper BAC sequences mapped near Cmr1. We expect that the SNP markers developed in this study will be useful for developing CMV-resistant cultivars and for fine mapping the Cmr1 gene. ? 2010 Springer-Verlag.

ISSN 

0040-5752

Link 

http://dx.doi.org/10.1007/s00122-010-1278-9

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2017-04-19


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