Transcriptomic evidence indicates that montane leaf beetles prioritize digestion and reproduction in a sex-specific manner during emergence from dormancy

Roberts, Kevin T.; Stillman, Jonathon H.; Rank, Nathan E.; Dahlhoff, Elizabeth P.; Bracewell, Ryan; Elmore, James L.; Williams, Carroll M.

doi:10.1016/j.cbd.2023.101088

Cited by 2 publications

References 77 publications

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Trade-offs between Winter Survival and Reproduction in Female Insects

Meuti,

Fyie,

Fiorta

et al. 2024

Integrative and Comparative Biology

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In temperate environments most species of insects enter an arrested state of development, known as diapause, that enables them to survive the adverse environmental conditions associated with winter. Although diapause is restricted to a single life stage within species of insects, there are examples of insects that overwinter in the egg, larval, pupal and adult stages. Here we offer a targeted, non-systematic literature review examining how overwintering impacts subsequent reproduction in female insects. Several factors, including the lifestage at which insects overwinter, the type of energy investment strategy females use for breeding, elements of the winter environment, and contributions from male insects can influence trade-offs that female insects face between overwintering survival and post-diapause reproduction. Additionally, climate change and elements of the urban environment, including light pollution and higher temperatures in cities, can exacerbate or ameliorate trade-offs faced by reproducing female insects. Better understanding trade-offs between overwintering survival and reproduction in insects not only enhances our understanding of the underlying physiological mechanisms and ecological processes governing diapause and reproduction, but also provide opportunities to better manage insect pests and/or support beneficial insects.

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Trade-offs between Winter Survival and Reproduction in Female Insects

Meuti,

Fyie,

Fiorta

et al. 2024

Integrative and Comparative Biology

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A chromosome scale genome assembly and evaluation of mtDNA variation in the willow leaf beetleChrysomela aeneicollis

Bracewell

Stillman

Dahlhoff

et al. 2023

Preprint

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The leaf beetleChrysomela aeneicollishas a broad geographic range across Western North America, but is restricted to cool habitats at high elevations along the west coast. Central California populations occur only at high altitudes (2900-3450 m) where they are limited by reduced oxygen supply and recent drought conditions that are associated with climate change. Here we report a chromosome-scale genome assembly alongside a complete mitochondrial genome, and characterize differences among mitochondrial genomes along a latitudinal gradient over which beetles show substantial population structure and adaptation to fluctuating temperatures. Our scaffolded genome assembly consists of 21 linkage groups; one of which we identified as the X chromosome based on female/male whole genome sequencing coverage and orthology withTribolium castaneum. We identified repetitive sequences in the genome and found them to be broadly distributed across all linkage groups. Using a reference transcriptome, we annotated a total of 12,586 protein coding genes. We also describe differences in putative secondary structures of mitochondrial RNA molecules, which may generate functional differences important in adaptation to harsh abiotic conditions. We document substitutions at mitochondrial tRNA molecules and substitutions and insertions in the 16S rRNA region that could affect intermolecular interactions with products from the nuclear genome. This first chromosome-level reference genome will enable genomic research in this important model organism for understanding the biological impacts of climate change on montane insects.

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Transcriptomic evidence indicates that montane leaf beetles prioritize digestion and reproduction in a sex-specific manner during emergence from dormancy

Cited by 2 publications

References 77 publications

Trade-offs between Winter Survival and Reproduction in Female Insects

Trade-offs between Winter Survival and Reproduction in Female Insects

A chromosome scale genome assembly and evaluation of mtDNA variation in the willow leaf beetleChrysomela aeneicollis

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