Dataset Information

Short read sequencing assembly revealed the complete mitochondrial genome of Ischnura elegans Vander Linden, 1820 (Odonata: Zygoptera).

ABSTRACT: Damselflies of the genus Ischnura emerge as organisms with high potential in ecological, evolutionary and developmental research at the base of flying insects. Ischnura elegans and Ischnura hastata are for example one of the few odonate species where a complete life cycle over generations can be reared under laboratory conditions. We here report the complete mitochondrial genome of Ischnura elegans as a valuable genomic resource for future eco-evo-devo studies at the base of flying insects. The genome has a total length of 15,962?bp and displays all typical features of Odonata (dragonflies and damselflies) mitochondrial genomes in gene content and order as well as A?+?T content. Start and stop codons of all protein-coding genes are consistent. Most interestingly, we found four intergenic spacer regions and a long A?+?T rich (control) region of 1196?bp, which is almost double the size of the close relative Ischnura pumilio. We assume that the adequate insert size and iterative mapping may be more efficient in assembling this duplicated and repetitive region.

SUBMITTER: Feindt W

PROVIDER: S-EPMC7800176 | biostudies-literature | 2016 Aug

REPOSITORIES: biostudies-literature

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Short read sequencing assembly revealed the complete mitochondrial genome of Ischnura elegans Vander Linden, 1820 (Odonata: Zygoptera).

Feindt Wiebke W Herzog Rebecca R Osigus Hans-Jürgen HJ Schierwater Bernd B Hadrys Heike H

Mitochondrial DNA. Part B, Resources 20160821 1

Damselflies of the genus Ischnura emerge as organisms with high potential in ecological, evolutionary and developmental research at the base of flying insects. Ischnura elegans and Ischnura hastata are for example one of the few odonate species where a complete life cycle over generations can be reared under laboratory conditions. We here report the complete mitochondrial genome of Ischnura elegans as a valuable genomic resource for future eco-evo-devo studies at the ...[more]

PMID: 33473559

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Project description:The study of island fauna has greatly informed our understanding of the evolution of diversity. We here examine the phylogenetics, biogeography, and diversification of the damselfly genera Nesobasis and Melanesobasis, endemic to the Fiji Islands, to explore mechanisms of speciation in these highly speciose groups. Using mitochondrial (COI, 12S) and nuclear (ITS) replicons, we recovered garli-part maximum likelihood and mrbayes Bayesian phylogenetic hypotheses for 26 species of Nesobasis and eight species/subspecies of Melanesobasis. Biogeographical patterns were explored using lagrange and bayes-lagrange and interpreted through beast relaxed clock dating analyses. We found that Nesobasis and Melanesobasis have radiated throughout Fiji, but are not sister groups. For Nesobasis, while the two largest islands of the archipelago-Viti Levu and Vanua Levu-currently host two distinct species assemblages, they do not represent phylogenetic clades; of the three major groupings each contains some Viti Levu and some Vanua Levu species, suggesting independent colonization events across the archipelago. Our beast analysis suggests a high level of species diversification around 2-6 Ma. Our ancestral area reconstruction (rasp-lagrange) suggests that both dispersal and vicariance events contributed to the evolution of diversity. We thus conclude that the evolutionary history of Nesobasis and Melanesobasis is complex; while inter-island dispersal followed by speciation (i.e., peripatry) has contributed to diversity, speciation within islands appears to have taken place a number of times as well. This speciation has taken place relatively recently and appears to be driven more by reproductive isolation than by ecological differentiation: while species in Nesobasis are morphologically distinct from one another, they are ecologically very similar, and currently are found to exist sympatrically throughout the islands on which they are distributed. We consider the potential for allopatric speciation within islands, as well as the influence of parasitic endosymbionts, to explain the high rates of speciation in these damselflies.

Dataset Information

Short read sequencing assembly revealed the complete mitochondrial genome of Ischnura elegans Vander Linden, 1820 (Odonata: Zygoptera).

Publications

Short read sequencing assembly revealed the complete mitochondrial genome of <i>Ischnura elegans</i> Vander Linden, 1820 (Odonata: Zygoptera).

Similar Datasets

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