Studies on morphological biochemical and molecular characterization of progenies of selected varieties in Mango Mangifera indica L

Abstract

newline The present study entitled Studies on morphological, biochemical and newlinemolecular characterization of progenies of selected varieties in mango newline(Mangifera indica L.) was carried at the Division of Fruit Crops, Division of newlineBiotechnology and Division of Basic Sciences, ICAR Indian Institute of newlineHorticultural Research (ICAR-IIHR), Hessaraghatta Lake Post, Bengaluru. newlineA set of three experiments were conducted. Morphological and biochemical newlinecharacterization of eight half-sib groups were undertaken along with their eight newlinemother varieties. Comparative analysis of leaf characters between half sibs and newlinemother varieties (Lazzat Baksh, Kesar, Goa Mankurad, Malanji, Dashehari, newlineSensation, Himsagar and Mandoor Khatta) showed, diverse leaf shapes, leaf tip newlineshapes, leaf textures and wide variation in young leaf colours. There was no newlinecommon pattern observed with respect to leaf characters among different half-sib newlinepopulations. This may be due to high heterozygous nature of mango and also newlinebecause the trait is governed by polygenes. Genetic diversity analysis among the newlineeight half-sib groups revealed that the total phenol content contributed maximum newlineto the diversity. The highest inter cluster distance D2 value (548.07) was newlinerecorded between cluster III (Lazzat Baksh) and cluster IV (Sensation and newlineMandoor Khatta). This suggested the presence of wide genetic diversity between newlinethese clusters. Based on these results crosses can be made between cultivars of newlinethese clusters to obtain wide diverse hybrids and suitable cultivars. newline xx newlineIn the second experiment, hybridity confirmation studies were carried out for newlinesome selected crosses ( Amrapali x M. odorata ) and ( Alphonso x Bappakai ) newlinewith parents by employing biochemical and SSR markers. The results showed newlinethat volatile compounds can be used to distinguish hybrid progenies from the newlineparents; however, they cannot be used to confirm the hybridity in Amrapali x M. newlineodorata and Alphonso x Bappakai hybrids. The hybridity of the progenies newline( Amrapali x Vanraj , Amr