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Prasad, M.D. and Nagaraju, J. (2003) A comparative phylogenetic analysis of full-length mariner elements isolated from the Indian tasar silkmoth, Antheraea mylitta (Lepidoptera: saturniidae). Journal of Biosciences, 28 (4). pp. 443-53. ISSN 0250-5991

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Abstract

Mariner like elements (MLEs) are widely distributed type II transposons with an open reading frame (ORF) for transposase. We studied comparative phylogenetic evolution and inverted terminal repeat (ITR) conservation of MLEs from Indian saturniid silkmoth, Antheraea mylitta with other full length MLEs submitted in the database. Full length elements from A. mylitta were inactive with multiple mutations. Many conserved amino acid blocks were identified after aligning transposase sequences. Mariner signature sequence, DD(34)D was almost inva ri able although a few new class of elements had different signatures. A. mylitta MLEs (Anmmar) get phylogene ti cally classified under cecropia subfamily and cluster closely with the elements from other Bombycoidea superfamily members implying vertical transmission from a common ancestor. ITR analysis showed a conserved sequence of AGGT(2-8N)ATAAGT for forward repeat and AGGT(2-8N)ATGAAAT for reverse repeat. These results and additional work may help us to understand the dynamics of MLE distribution in A. mylitta and construction of appropriate vectors for mariner mediated transgenics.

Item Type: Article
Depositing User: Dr P Divakar
Date Deposited: 10 Jun 2015 09:30
Last Modified: 07 Oct 2015 07:03
URI: http://cdfd.sciencecentral.in/id/eprint/165

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