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Sabrao Journal of Breeding and Genetics, Volume 48, Issue 3, 2016, pp. 277-284

Diversity study in capsicum using numerical taxonomy

Abstract :

The taxonomy of capsicum species is difficult since it displays variation especially in fruit morphology, which is a major economic component. The objective of this study was to evaluate the diversity among 60 landrace accessions of Capsicum annum based on morphological traits and to determine the principal traits and their contribution to genetic variability. The accessions were analyzed for 35 qualitative and quantitative descriptors. The phenotypic divergence and relative importance of the traits were estimated by multivariate analysis. PCA analysis identified 14 morphological traits which can be used as minimum descriptors. Fruit related traits revealed highest correlation with the minimum descriptors hence can be used as principle characters for characterizing and divergence study in the Capsicum annum. © Society for the Advancement of Breeding Research in Asia and Oceania (SABRAO) 2016.

Keywords : Genetic divergence,Minimum descriptors,Morphological diversity,Phylogenetic relationship,Principal component analysis
Subject Area : Biotechnology Genetics Agronomy and Crop Science Animal Science and Zoology Horticulture

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