Plant & Animal Genome V Conference
Town & Country Hotel, San Diego, CA, January 12-16, 1997.
PAG-V: W69 - UPDATED <i>Capsicum</i> MAPS AND ANALYSIS OF SYNTENY BETWEEN PEPPER AND TOMATO; MAPPING DISEASE RESISTANCE GENES, RESISTANCE GENE ORTHOLOGS AND HORTICULTURAL CHARACTERS IN PEPPER
W69
UPDATED Capsicum MAPS AND ANALYSIS OF SYNTENY BETWEEN PEPPER AND TOMATO; MAPPING DISEASE RESISTANCE GENES, RESISTANCE GENE ORTHOLOGS AND HORTICULTURAL CHARACTERS IN PEPPER
KYLE, MOLLY(1), Veronique Lefebvre(2), Vincent K. Lackney(3), Yiping Zhang(4), Carole Caranta(5), Alain Palloix(5), James P. Prince(6), Elaine Radwanski(6), Kevin Livingstone(6), James Blauth(7), Dani Zamir(8), Johan Peleman(9), Ilan Paran(10)
1. Department of Plant Breeding and Biometry, 312 Bradfield Hall, Cornell University, Ithaca, NY 14953
2. INRA, Domaine Saint Maurice, BP94, 84143 Montfavet cedex, France
3. Dept of Plant Breeding, Cornell University, Ithaca, NY USA 14853
4. Dept of Plant Breeding, Cornell University, Ithaca, NY USA 14853
5. INRA, Domaine Saint Maurice, BP94, 84143 Montfavet cedex, France, ,
6. California State University, Fresno, CA USA 93740
7. Dept. of Biology, Alfred University, Alfred, NY USA 14802
8. Faculty of Agriculture, Hebrew University, Rehovot Israel
9. Keygenes, Agrobusiness Park 90, 6708 PW Wageningen, The Netherlands
10. The Volcani Center, P.O. Box 6, Bet-Dagan, Israel
Several molecular maps of the Capsicum genome have been generated, one of which includes tomato clones spanning the tomato genome (the Cornell map). Markers consist of pepper and tomato genomic and cDNA clones, other cloned genes, isozymes, phenotypic, RAPD and AFLP markers. In addition to the large interspecific comparative map, two more interspecific maps done at Cornell and two intraspecific maps done at INRA will be presented. The three interspecific maps are based on three F2 populations derived by intercrossing three parents: C. annuum R.Naky, C. chinense PI 159234 and C. frutescens BG2814-6. The two intraspecific maps were constructed from doubled haploid progenies from C. annuum Perennial x Yolo Wonder and H3 x Vania. The mapping populations are segregating for monogenic resistance to tobacco mosaic virus and pepper mild mottle virus, tomato spotted wilt virus, and three different recessive loci for resistance to potato virus Y, potyvirus E, pepper mottle virus, tobacco etch virus and pepper veinal mottle virus. In addition, QTL analysis for various horticultural characters and resistance to Phytophthora capsici, potyviruses, and cucumber mosaic virus will be described. Tagging genes for resistance to tomato spotted wilt virus, to Xanthomonas campestris pv. vesicatoriae and to Meloidogyne nematodes is also underway. Especially where mechanisms of resistance for a particular pathogen appear conserved across plant species, data concerning the possible orthology of resistance genes will be described.