Five independent loci each control monogenic resistance to gummy stem blight in melon (Cucumis melo L.).
Saved in:
| Title: | Five independent loci each control monogenic resistance to gummy stem blight in melon (Cucumis melo L.). |
|---|---|
| Authors: | Frantz, J. D.1, Jahn, M. M.1 mmj9@cornell.edu |
| Source: | Theoretical & Applied Genetics. Apr2004, Vol. 108 Issue 6, p1033-1038. 6p. |
| Subjects: | Genes, Heredity, Plant diseases, Melons, Plant populations |
| Abstract: | Inheritance and segregation analysis demonstrated that five independent genes in melon confer monogenic resistance to foliar infection by the fungal pathogen Didymella bryoniae, resulting in the disease known as gummy stem blight (GSB). In this study, two new monogenic sources of GSB resistance were characterized. Resistance in Cucumis melo PI 482398 was monogenic dominant based on segregation analysis of F1, F2 and backcross populations, while resistance in C. melo PI 482399 showed monogenic recessive inheritance. Four accessions, PI 482398, PI 157082, PI 511890, and PI 140471, each previously known to carry monogenic dominant resistance to GSB, were intercrossed to determine genetic relationships among these resistance sources. Recovery of susceptible individuals in F2 populations confirmed that these accessions possess different resistance genes. Resistance loci were designated Gsb-1 (formerly Mc, monogenic dominant resistance from PI 140471), Gsb-2 (monogenic dominant resistance from PI 157082), Gsb-3 (monogenic dominant resistance from PI 511890), Gsb-4 (monogenic dominant resistance from PI 482398) and gsb-5 (monogenic recessive resistance from PI 482399). [ABSTRACT FROM AUTHOR] |
| Copyright of Theoretical & Applied Genetics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
Be the first to leave a comment!
