Genetic analysis for yield and its attributes in bitter gourd (Momordica charantia)

Abstract

Genetic interaction and inheritance study in bitter gourd was carried out using six-generation mean analysis to determinate the types and magnitude of gene effects for yield and its attributes. The knowledge portioning to gene action and interaction, is tool for designing appropriate breeding strategy for developing varieties in bitter gourd. Four crosses, viz. DBGS-54 × DBGS-34, DBGS-2 × DBGS-34, PVGy-201 × Pusa Do Mousami and DBGS-2 × DBGS-3 were used for studying six generation (P1, P2, F1, F2, B1 and B2) model. The presence of non-allelic interaction were detected by both scaling test and joint scaling test and observed inadequacy of the additive-dominance model for all traits except vine length in cross PVGy-201 × Pusa Do Mousami.The results revealed the contribution of additive (d), dominance (h) and epistasis interaction (i, j, l) towards expression of all traits studied. In most of the characters magnitude of dominance gene effect was greater than additive gene effect suggested that recurrent selection or heterosis breeding would prove useful. Duplicate epistasis was prevalent in most of the traits like vine length, days to first female flower and fruit weight. Fruit epicarp colour and seed coat colour inheritance suggested these traits were controlled by monogenic.

Generation mean analysis to study the genetics of fruit yield and yield attributing traits in bitter gourd

“…It signified that all these traits followed quantitative inheritance. Our study are in congruence with Rathod et al (2021), who also observed the quantitative inheritance of various traits like vine length, days to first female flower appearance, fruit weight, number of fruits per vine, yield per vine in bitter gourd.…”

Genetic Diversity and Population Structure Analyses in Bitter Gourd (Momordica charantia L.) Based on Agro-Morphological and Microsatellite Markers

“…The bitter gourd (Momordica charantia L. 2n = 2x = 22) belongs to the family Cucurbitaceae. India is considered as the primary centre of origin of bitter gourd [1]. It was domesticated in eastern Asia, most likely in eastern India or southern China [2,3].…”

“…charantia produces large fruits, and M. charantia var. muricata, produces small and round fruits those are used in curries, stuffed, fried, or pickled [1,9]. Fruits are an excellent source of nutrients such as carbohydrates, proteins, minerals, and vitamins, particularly ascorbic acid and iron, and are the most nutritious vegetable among cucurbits [9].…”