Genetic diversity and species identity of the critically endangered Rote Island snake-necked turtle, Chelodina mccordi Rhodin, 1994

N.A. Devi, R. Eprilurahman, D.S. Yudha, S. Raharjo, M. As-Singkily, D. Gunalen, E. Arida*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference paperpeer-review

1 Citation (Scopus)

Abstract

The endemic Chelodina mccordi is considered extinct in the wild; however, ex-situ populations are thriving and sampled for our genetic diversity assessment. We used three sequences resulting from blood and tissue samples of five individual turtles amplified for 650-bp cytochrome oxidase I (COI) fragment of the mitochondrial DNA. We analysed a total of 30 barcoding DNA sequences for phylogenetic relationships and genetic distances among Chelodina spp. Nucleotide diversity of eight C. mccordi samples is 0.007 0.001 with a haplotype diversity of 0.893 0.086. All these samples form a monophyletic clade that is sister to a clade of Australian and New Guinean long-necked turtles. Genetic distances calculated using Kimura 2-paramater model among C. mccordi sequences range between 0.2% and 1.5%, while a few others are without distance. The shortest genetic distance is between individuals from Rote Island, whereas the longest distance was found between individuals, each of which was derived from parental stocks originating in Rote and Timor islands. A genetic distance of 1.1% - 1.5% is likely to denote distinction at subspecies level. Results of this study could help in reintroducing captive individuals into their natural habitats. Thus, captive breeding programme of this species may help its conservation.

Original languageEnglish
Title of host publication IOP Conference Series: Earth and Environmental Science
PublisherIOP Publishing
Volume948
Edition1
DOIs
Publication statusPublished - 16 Dec 2021
Externally publishedYes
Event4th International Conference on Biosciences, ICoBio 2021 - Bogor, Indonesia
Duration: 11 Aug 202112 Aug 2021

Publication series

NameIOP Conference Series: Earth and Environmental Science
PublisherInstitute of Physics Publishing
ISSN (Print)1755-1307

Conference

Conference4th International Conference on Biosciences, ICoBio 2021
Country/TerritoryIndonesia
CityBogor
Period11/08/2112/08/21

Keywords

  • captivity
  • genetic profile
  • Lesser Sunda
  • source population
  • taxonomic level

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