التفاصيل البيبلوغرافية
| العنوان: |
Transcriptomic evidence indicates that montane leaf beetles prioritize digestion and reproduction in a sex-specific manner during emergence from dormancy. |
| المؤلفون: |
Roberts, Kevin T., Stillman, Jonathon H., Rank, Nathan E., Dahlhoff, Elizabeth P., Bracewell, Ryan R., Elmore, Joanna, Williams, Caroline M. |
| المصدر: |
Comparative Biochemistry & Physiology Part D: Genomics & Proteomics; Sep2023, Vol. 47, pN.PAG-N.PAG, 1p |
| مصطلحات موضوعية: |
CHRYSOMELIDAE, REPRODUCTION, GENE expression profiling, SNOW cover, CLIMATE change, DIGESTION |
| مستخلص: |
During winter, many organisms conserve resources by entering dormancy, suppressing metabolism and biosynthesis. The transition out of winter dormancy to summer activity requires a quick reversal of this suppression, in order to exploit now-favorable environmental conditions. To date, mechanisms by which winter climate variation affects this transition remains unelucidated. Here we experimentally manipulated snow cover for naturally overwintering montane leaf beetles (Chrysomela aeneicollis), and profiled changes in gene expression during the transition out of dormancy in spring. Upon emergence, beetles up-regulate transcripts associated with digestion and nutrient acquisition and down regulate those associated with lipid metabolism, suggesting a shift away from utilizing stored lipid and towards digestion of carbohydrate-rich host plant tissue. Development of digestive capacity is followed by up-regulation of transcripts associated with reproduction; a transition that occurs earlier in females than males. Snow manipulation strongly affected the ground thermal regime and correspondingly gene expression profiles, with beetles showing a delayed up-regulation of reproduction in the dry compared to snowy plots. This suggests that winter conditions can alter the timing and prioritization of processes during emergence from dormancy, potentially magnifying the effects of declining snow cover in the Sierra's and other snowy mountains. [Display omitted] • We compared global gene expression of montane leaf beetles as they emerged from dormancy. • Females prioritized upregulation of genes involved in reproduction and digestion. • Males also prioritized digestion, but reproduction was delayed by several days. • Winter snow cover impacted the timing of upregulated post-dormancy processes. [ABSTRACT FROM AUTHOR] |
|
Copyright of Comparative Biochemistry & Physiology Part D: Genomics & Proteomics is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Supplemental Index |
