Relaciones Filogeográficas De Algunas Colonias De Alimentación Y Anidación De La Tortuga Carey (Eretmochelys Imbricata) en El Pacífico Y Caribe Colombianos

Trujillo‐Arias, Natalia; Amorocho, Diego; López-Álvarez, Diana; Mejía-Ladino, Luz Marina

doi:10.25268/bimc.invemar.2014.43.1.39

Cited by 3 publications

(3 citation statements)

References 42 publications

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“…Interestingly, the only two previous records of haplotype EiIP74, which we identified in multiple Central American rookeries, came from two foraging animals, one encountered along Pacific Colombia (Trujillo‐Arias et al. ) and the other at the Howicks Island group in the Great Barrier Reef, Australia (Bell et al.). Barring discovery of nesting rookeries in other parts of the Pacific that harbor the EiIP74 haplotype, our findings suggest that hatchlings are able to emigrate out of the EP (e.g., into Australian waters).…”

Section: Discussionmentioning

confidence: 90%

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Hawksbill turtle terra incognita: conservation genetics of eastern Pacific rookeries

Gaos

Lewison

Liles

et al. 2016

Ecology and Evolution

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Prior to 2008 and the discovery of several important hawksbill turtle (Eretmochelys imbricata) nesting colonies in the EP (Eastern Pacific), the species was considered virtually absent from the region. Research since that time has yielded new insights into EP hawksbills, salient among them being the use of mangrove estuaries for nesting. These recent revelations have raised interest in the genetic characterization of hawksbills in the EP, studies of which have remained lacking to date. Between 2008 and 2014, we collected tissue samples from 269 nesting hawksbills at nine rookeries across the EP and used mitochondrial DNA sequences (766 bp) to generate the first genetic characterization of rookeries in the region. Our results inform genetic diversity, population differentiation, and phylogeography of the species. Hawksbills in the EP demonstrate low genetic diversity: We identified a total of only seven haplotypes across the region, including five new and two previously identified nesting haplotypes (pooled frequencies of 58.4% and 41.6%, respectively), the former only evident in Central American rookeries. Despite low genetic diversity, we found strong stock structure between the four principal rookeries, suggesting the existence of multiple populations and warranting their recognition as distinct management units. Furthermore, haplotypes EiIP106 and EiIP108 are unique to hawksbills that nest in mangrove estuaries, a behavior found only in hawksbills along Pacific Central America. The detected genetic differentiation supports the existence of a novel mangrove estuary “reproductive ecotype” that may warrant additional conservation attention. From a phylogeographic perspective, our research indicates hawksbills colonized the EP via the Indo‐Pacific, and do not represent relict populations isolated from the Atlantic by the rising of the Panama Isthmus. Low overall genetic diversity in the EP is likely the combined result of few rookeries, extremely small reproductive populations and evolutionarily recent colonization events. Additional research with larger sample sizes and variable markers will help further genetic understanding of hawksbill turtles in the EP.

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Section: Discussionmentioning

confidence: 90%

“…Three of the five new nesting haplotypes were previously identified for juvenile hawksbills encountered at foraging grounds located along Pacific Colombia ( n = 3; EiIP74, EiIP106, and EiIP115; Trujillo‐Arias et al. ) and the Howicks Island group in the Great Barrier Reef ( n = 1; EiIP74; GenBank Accession Number ; Bell et al. unpubl.…”

Section: Resultsmentioning

confidence: 97%

Hawksbill turtle terra incognita: conservation genetics of eastern Pacific rookeries

Gaos

Lewison

Liles

et al. 2016

Ecology and Evolution

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“…Marcovaldi et al [6] reported that this species nests from the state of Florida (USA) in the wider Caribbean, to the south coast of Espirito Santo in Brazil. Trujillo-Arias et al [7] located foraging areas for the hawksbill turtle in Colombia on the Islas del Rosario and in the National Natural Park of Cabo de la Vela.…”

Section: Datamentioning

confidence: 99%

Data of first de-novo transcriptome assembly of a non-model species, hawksbill sea turtle, Eretmochelys imbricate , nesting of the Colombian Caribean

Fernández

2017

Data in Brief

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The hawksbill sea turtle, Eretmochelys imbricata, is an endangered species of the Caribbean Colombian coast due to anthropic and natural factors that have decreased their population levels. Little is known about the genes that are involved in their immune system, sex determination, aging and others important functions. The data generated represents RNA sequencing and the first de-novo assembly of transcripts expressed in the blood of the hawksbill sea turtle. The raw FASTQ files were deposited in the NCBI SRA database with accession number SRX2653641. A total of 5.7 Gb raw sequence data were obtained, corresponding to 47,555,108 raw reads. Trinity was used to perform a first de-novo assembly, and we were able to identify 47,586 transcripts of the female hawksbill turtle transcriptome with an N50 of 1100 bp. The obtained transcriptome data will be useful for further studies of the physiology, biochemistry and evolution in this species.

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NEW MITOCHONDRIAL MARKERS IMPROVE THE PHYLOGENY OF THE HAWKSBILL TURTLE Eretmochelys imbricata (TESTUDINES: CHELONIIDAE)

Beltrán-Torres

Fernández

2018

BAG

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The sea turtles (Cheloniidae) are a group of seven species of cretaceous origin. Analyses of partial mitochondrial sequences have revealed phylogenetic inconsistences within this group. Nevertheless, these mitochondrial markers have allowed us to understand, explain and clarify population composition in areas of foraging, reproductive habits, inferences of migration patterns and, also, to define management units in the world, in order to trace conservation and monitoring plans. In this study, four methods were evaluated and compared for phylogenetic inference (Neighbor-Joining-NJ, Maximum Likelihood-ML, Maximum Parsimony-MP and Bayesian inference-BI) by using coding genes, ribosomal genes and full mitogenomes of the hawksbill, E. imbricata, and other six species of sea turtles obtained from GenBank. The sequences were analyzed independently and jointly to identify the method and marker that better explain the phylogenetic relationships among this group of reptiles. The NJ, ML, MP and BI trees showed that ND2, COX1, 16S rRNA, ND5, 12S rRNA, ND4 and COX3 are the markers that give phylogenetic trees with better resolution and support, with bootstrap values ranging from 89.0% to 99.98%. ATP6, ATP8, COX2, ND1, ND3, ND5 and ND4L genes presented polytomies. The analysis with full mitogenome often provides highly supported trees (bootstrap 98.0%) compared with single marker analysis. Trees obtained with the BI method and the ND2 gene is the one that better resolved the evolutionary relationships among the species, consolidating the position of E. imbricata within the Carettini tribe with a value of posterior probability of 0.98-1.0. The markers ND2, ND4, ND5 and COIII, not used in previous works, represent a new alternative to explain the phylogeny in this group of marine reptiles. In the present study, a complete mitogenome analysis produced robust and highly supported trees. Key words: phylogenetic relationships, Eretmochelys imbricate, mitogenoma, sea turtles, bootstrap, polytomies

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Relaciones Filogeográficas De Algunas Colonias De Alimentación Y Anidación De La Tortuga Carey (Eretmochelys Imbricata) en El Pacífico Y Caribe Colombianos

Cited by 3 publications

References 42 publications

Hawksbill turtle terra incognita: conservation genetics of eastern Pacific rookeries

Hawksbill turtle terra incognita: conservation genetics of eastern Pacific rookeries

Data of first de-novo transcriptome assembly of a non-model species, hawksbill sea turtle, Eretmochelys imbricate , nesting of the Colombian Caribean

NEW MITOCHONDRIAL MARKERS IMPROVE THE PHYLOGENY OF THE HAWKSBILL TURTLE Eretmochelys imbricata (TESTUDINES: CHELONIIDAE)

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