Monogenic Dominant Resistance to Gummy Stem Blight in Two Melon (Cucumis melo) Accessions

Autor:	J. P. Jantz, T. A. Zitter, T. L. Zuniga, Molly M. Kyle Jahn
Rok vydání:	1999
Předmět:	Gummy stem blight Didymella bryoniae biology Melon Botany Backcrossing Genotype Plant Science Plant disease resistance biology.organism_classification Agronomy and Crop Science Cucurbitaceae Cucumis
Zdroj:	Plant Disease. 83:1105-1107
ISSN:	1943-7692 0191-2917
Popis:	Two melon (Cucumis melo L.) accessions, plant introduction (PI) 157082 and PI 511890, reported to be resistant to gummy stem blight, a disease incited by the fungus Didymella bryoniae, were crossed with a susceptible parent to determine the inheritance of resistance. Resistance in both accessions is due to a single dominant gene, based on analysis of F1, F2, and backcross populations. Additionally, PI 157082 was crossed with PI 140471, the other source of resistance identified to date, to examine the genetic relationship of resistance found in these two sources. The frequency of susceptible individuals from the (PI 157082 × 140471) F2population was consistent with a 15:1 resistant:susceptible ratio, indicating that PIs 140471 and 157082 possess different resistance genes.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e83d47ce39c54ae11031493cbcb5384 https://doi.org/10.1094/pdis.1999.83.12.1105 Zobrazit plný text záznamu