Please use this identifier to cite or link to this item:
Title: DNA barcoding and preliminary phylogenetic analysis of few gastropods (Family: Potamididae and Nassariidae) in Vellar estuary mangroves, India by COI and 18S rRNA genes
Authors: Thangaraj, M
Annadurai, D
Ramesh, T
Kumaran, R
Ravitchandirane, V
Keywords: Gastropods;Genetic distance;Mangrove;mtDNA genes;Phylogeny
Issue Date: Apr-2020
Publisher: NISCAIR-CSIR, India
Abstract: Class Gastropoda is one of the widely studied invertebrates throughout the globe. But, even now most of the species have been identified only by conventional morphology. DNA barcodes have been greatly useful to delimit the cryptic species. In this study, we have analyzed cytochrome c oxidase I (COI) and 18S rRNA gene sequences from 12 specimens belonging to four species to barcode and examine the molecular variation in gastropods of the Vellar estuary mangroves of Tamil Nadu, India. From the results, it is revealed that, among the four genera, Terebralia, Telescopium, and Cerithidea are closely related than genus Nassarius based on the COI and 18S rRNA gene sequences. The neighbour joining trees also confirmed four distinct clades harbouring four genera. As expected, the within species K2P genetic variation is lesser than between species K2P genetic variation in both the genes. An intensive survey is needed to assess the genetic variation of all gastropods in the manmade Vellar estuary mangroves and nearby natural Pichavaram mangroves with additional molecular markers.
Page(s): 596-600
ISSN: 0975-1033 (Online); 0379-5136 (Print)
Appears in Collections:IJMS Vol.49(04) [April 2020]

Files in This Item:
File Description SizeFormat 
IJMS 49(4) 596-600.pdf279.93 kBAdobe PDFView/Open

Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.