Inheritance of Resistance to Crown Rot Caused by Phytophthora capsici in Cucurbita

Autor:	Eileen A. Kabelka, Les D. Padley, Pamela D. Roberts
Rok vydání:	2009
Předmět:	Horticulture Phytophthora capsici biology Cucurbita moschata Crown (botany) Botany Backcrossing Introgression Cucurbita Plant disease resistance biology.organism_classification Squash
Zdroj:	HortScience. 44:211-213
ISSN:	2327-9834 0018-5345
DOI:	10.21273/hortsci.44.1.211
Popis:	The various disease syndromes caused by Phytopthora capsici Leonian can be devastating to squash (Cucurbita spp.) production areas of the United States. In some growing seasons, yield loss has been reported up to 100%. A recently developed University of Florida Cucurbita breeding line, #394-1-27-12, resistant to the crown rot syndrome of P. capsici, was used to determine the inheritance of resistance to this disease. Data from F1, F2, and backcross progeny from crosses of a P. capsici-susceptible butternut-type winter squash (C. moschata) with #394-1-27-12 indicated that resistance is conferred by three dominant genes. The introgression of P. capsici crown rot resistance from #394-1-27-12 into morphologically diverse domesticates within Cucurbita will aid in the management of this economically important pathogen.
Databáze:	OpenAIRE
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