Inheritance of anthracnose resistance (Colletotrichum scovillei) in ripe and unripe Capsicum annuum fruits. Issue 3 (14th January 2020)

• Record Type: Journal Article
• Authors: Giacomin, Renata Mussoi; Ruas, Claudete de Fátima; Moreira, Aline Fabiana Paladini; Guidone, Gustavo Henrique Migliorini; Baba, Viviane Yumi; Rodrigues, Rosana; Gonçalves, Leandro Simões Azeredo
• Is Part Of: Journal of phytopathology. Volume 168:Issue 3(2020)
• Page Start: 184
• Page End: 192
• Publication Date: 2020-01-14
• Subjects: Capsicum breeding -- development stage‐specific response -- genetic control; Plant diseases -- Periodicals; 632
• DOI: 10.1111/jph.12880
• Languages: English
• ISSNs: 0931-1785

Abstract

Abstract: Anthracnose, caused by Colletotrichum spp., is one of the most common diseases affecting sweet pepper and chilli pepper production worldwide, especially in tropical and subtropical zones. This disease results in severe fruit damage both pre‐ and postharvest. The development of resistant cultivars is the most effective strategy for disease control, which requires knowing the genetic basis of resistance. In this study, we analysed the inheritance of resistance of Capsicum annuum to Colletotrichum scovillei at two fruit development stages. The ripe and unripe fruits were inoculated by conidia suspension, and anthracnose severity was evaluated for 8 days using a score scale. It was found that the inheritance of resistance has independent expression in ripe and unripe fruits. In both cases, two main genes are responsible for resistance with polygenic effects. Genetic control, with a quantitative aspect, is more affected by dominance than the additive effects, in both fruit development stages of C. annuum .