Research Article

Parent Selection for Intercrossing in Chili (Capsicum annuum L.) through Multivariate Genetic Divergence Analysis  

Matin Akand1* , Rokib Hasan2* , Nazmul Alam2 , Abul Bashar2 , Mohammad Kamal Hossain2 , A K M Mahmudul Huque2,3
1 Regional Spices Research Centre, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur-1701, Bangladesh
2 Plant Breeding and Crop Improvement Laboratory, Department of Botany, Jahangirnagar University, Savar, Dhaka-1342, Bangladesh
3 Department of Molecular Biology, Division of Life Sciences, Hana Science Hall, Korea University, Seoul 02841, Republic of Korea (South)
*This author has contributed equally to this work
Author    Correspondence author
Molecular Plant Breeding, 2016, Vol. 7, No. 29   doi: 10.5376/mpb.2016.07.0029
Received: 01 Jun., 2016    Accepted: 15 Jul., 2016    Published: 12 Aug., 2016
© 2016 BioPublisher Publishing Platform
This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Preferred citation for this article:

Matin A., Rokib H., Nazmul A., Abul B., M Kamal H., and A K M M.H., 2016, Parent Selection for Intercrossing in Chili (Capsicum annuum L.) through Multivariate Genetic Divergence Analysis, 7(29): 1-12 (doi: 10.5376/mpb.2016.07.0029)

Abstract

Thirty chili (Capsicum annuum L.) genotypes were evaluated to screen out suitable parents for hybridization programme through multivariate analysis. Genetic diversity in chili genotypes based on twelve characters was estimated using Mahalanobis’s D2 statistics. Six different clusters were formed through non-hierarchical clustering. The cluster I had the maximum number (9) of genotypes followed by cluster III and IV with 7 and 6 genotypes. Cluster V contained only one genotype. The highest inter-cluster distance was observed between cluster II and V (532.214) and the lowest inter-cluster distance was observed between the cluster I and IV (91.948). The results indicated that fruit diameter (16%) contributed maximum to the total divergence followed by plant height (14.5%) and fruits/plant (12.5%). Cluster VI produced highest mean for fruit diameter (14.04), fruits/plant (219). Cluster V produced highest mean for fruit length (8.15) and yield/plant (617.13). Six different homozygous divergent parents G1, G11, G13, G25, G17 and G30 were selected from six different clusters using variance ranking among genotypes within cluster. A Genotype by trait (GT) biplot analysis was done to show the six potential parents from six different clusters along with their suitable characters in one frame.

Keywords
Chili; Mahalanobis D2 statistics; GT biplot
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