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Complete mitochondrial genome of the Arctic hare, Lepus arcticus.

ABSTRACT: In this study, we report on the complete mitochondrial genome of the Arctic hare, Lepus arcticus (Leporidae; Lagomorpha) a large lagomorph endemic to the northernmost regions of Greenland. The complete mitogenome of L. arcticus was 16,972?bp long and was typical of genus Lepus mitogenomes in genomic content and structure, as the entire mitogenome contained 13 protein-coding genes (PCGs), two ribosomal RNA (rRNA) genes, 22 transfer RNA (tRNA) genes, and one control region. The phylogenetic analysis of the Arctic hare within Leporidae confirmed the sister relationship among Lepus species. This mitogenome sequence will provide a useful resource for investigations of biogeography, phylogenetic distance, and evolutionary history in lagomorphs.

SUBMITTER: Kim BM

PROVIDER: S-EPMC7707595 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature

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Complete mitochondrial genome of the Arctic hare, Lepus arcticus.

Kim Bo-Mi BM Lee Won Young WY Rhee Jae-Sung JS

Mitochondrial DNA. Part B, Resources 20191016 2

In this study, we report on the complete mitochondrial genome of the Arctic hare, Lepus arcticus (Leporidae; Lagomorpha) a large lagomorph endemic to the northernmost regions of Greenland. The complete mitogenome of L. arcticus was 16,972 bp long and was typical of genus Lepus mitogenomes in genomic content and structure, as the entire mitogenome contained 13 protein-coding genes (PCGs), two ribosomal RNA (rRNA) genes, 22 transfer RNA (tRNA) genes, and one control region. Th ...[more]

PMID: 33366112

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Project description:In female mammals, reproduction, and in particular lactation, is the energetically most exigent life-history phase. Reproduction is strongly controlled by body reserves and food availability, so females with better body condition or food supply are believed to have higher reproductive output. Additionally, the growth and mortality of young mammals depends on their postnatal development. Therefore, the degree of precociality affects energetic demands for both mothers and young. To study the reproductive performance of the precocial European hare (Lepus europaeus), we analysed relationships between six predictor variables describing maternal and environmental effects and nine response variables relating to reproduction from 217 captive females. We compared the data with those of precocial and altricial mammal species from an extensive literature search. For hares, we found: (1) Heavier females had heavier litters at birth. (2) In summer and spring, total litter mass was larger than in winter. (3) At the end of lactation, the litters of multiparous females were heavier than those of primiparous females. (4) Both older females and females giving birth for the first time had relatively high leveret mortality during lactation. Comparing our results with the literature for other mammals revealed that the body condition (i.e., body mass) of females before birth is predictive of reproductive parameters in both precocial and altricial species. In the precocial hare, female body condition is no longer predictive of reproductive parameters at the end of lactation, whereas in altricial species, female body condition remains predictive of reproduction (litter mass at the end of lactation, offspring mortality) until the end of lactation. We conclude that these effects are caused by precocial offspring feeding on solid food soon after birth and, thus, being less dependent on the mother's body condition during lactation than altricial offspring. In line with this, precociality might have evolved as a way of buffering offspring against maternal effects.

Dataset Information

Complete mitochondrial genome of the Arctic hare, Lepus arcticus.

Publications

Complete mitochondrial genome of the Arctic hare, <i>Lepus arcticus</i>.

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