Laticauda colubrina
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA414929 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:whole genome sequencing of a sea snake Laticauda laticaudata
| PRJDB7226 | ENA
Project description:Whole genome sequencing of a sea snake Laticauda colubrina
| PRJDB7284 | ENA
Project description:RNA-seq analyses of an amphibious sea snake Laticauda laticaudata
| PRJDB7257 | ENA
Project description:Pairwise comparison of the orthologous olfactory receptor genes between two sympatric sibling sea kraits of the genus Laticauda in Vanuatu
| PRJDB2439 | ENA
Project description:Pairwise comparison of the orthologous olfactory receptor genes between two sympatric sibling sea kraits of the genus Laticauda in Vanuatu
| PRJDB2696 | ENA
Project description:Pairwise comparison of the orthologous olfactory receptor genes between two sympatric sibling sea kraits of the genus Laticauda in Vanuatu
| PRJDB2753 | ENA
Project description:Marine reptiles are declining globally, and recent climate change may be a contributing factor. The study of sea snakes collected beyond their typical distribution range provides valuable insight on how climate change affects marine reptile populations. Recently, we collected 12 Laticauda semifasciata (11 females, 1 male) from the waters around southern South Korea-an area located outside its typical distribution range (Japan, China including Taiwan, Philippines and Indonesia). We investigated the genetic origin of Korean specimens by analyzing mitochondrial cytochrome b gene (Cytb) sequences. Six individuals shared haplotypes with a group found in Taiwan-southern Ryukyu Islands, while the remaining six individuals shared haplotypes with a group encompassing the entire Ryukyu Archipelago. These results suggest L. semifasciata moved into Korean waters from the Taiwan-Ryukyu region via the Taiwan Warm Current and/or the Kuroshio Current, with extended survival facilitated by ocean warming. We highlight several contributing factors that increase the chances that L. semifasciata establishes new northern populations beyond the original distribution range.
| S-EPMC5482473 | biostudies-literature
Project description:Transposable elements (TEs) are self-replicating genetic sequences and are often described as important 'drivers of evolution'. This driving force is because TEs promote genomic novelty by enabling rearrangement, and through exaptation as coding and regulatory elements. However, most TE insertions potentially lead to neutral or harmful outcomes, therefore host genomes have evolved machinery to suppress TE expansion. Through horizontal transposon transfer (HTT) TEs can colonize new genomes, and since new hosts may not be able to regulate subsequent replication, these TEs may proliferate rapidly. Here, we describe HTT of the Harbinger-Snek DNA transposon into sea kraits (Laticauda), and its subsequent explosive expansion within Laticauda genomes. This HTT occurred following the divergence of Laticauda from terrestrial Australian elapids approximately 15-25 Mya. This has resulted in numerous insertions into introns and regulatory regions, with some insertions into exons which appear to have altered UTRs or added sequence to coding exons. Harbinger-Snek has rapidly expanded to make up 8-12% of Laticauda spp. genomes; this is the fastest known expansion of TEs in amniotes following HTT. Genomic changes caused by this rapid expansion may have contributed to adaptation to the amphibious-marine habitat.
| S-EPMC8437027 | biostudies-literature