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Phenomic analyses of indigenous and exotic accessions of Mulberry (Morus spp.)

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Author Affiliations

  • 1Division of Plant Biology, Bose Institute, 93/1 APC Road, Kolkata – 700009, INDIA
  • 2Central Sericultural Research & Training Institute, Berhampore-742101, INDIA

Int. Res. J. Biological Sci., Volume 3, Issue (7), Pages 40-48, July,10 (2014)

Abstract

Broadening of gene pool vis-ŕ-vis development of superior genotypes is a continuous process for Mulberry (Morus spp.) since the silkworm Bombyx mori L. thrives only on its foliage. The objective of the present study was to understand the interrelationship between selected indigenous / exotic genotypes of the Mulberry germplasm collection of Central Sericulture Research and Training Institute (CSR&TI), Berhampore, West Bengal, India with a phenomic approach. The association between traits was further elucidated to identify appropriate marker assisted selection strategies. The phenogram and factorial analysis of ninety four genotypes was constructed on the basis of fourteen quantitative parameters. The improved genotypes were found to be clubbed in the smallest cluster while seventy four percent exotic germplasm were grouped together in the largest cluster of phenetic tree. Correlation analysis between twenty seven parameters (fourteen quantitative with additional thirteen anatomical) revealed forty six significant correlation values, of which twenty eight percent correlations were negative. The negative correlations between traits of interest were found in opposite principal coordinates.

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