Changes in effective population size of Odonata in response to climate change revealed through genomics

• DOI: 10.48156/1388.2023.1917241
• Publication Date: 2023-12-18T15:04:30Z
• Authors: Ethan R. Tolman; Or R. Bruchim; Ella Simone Driever; Dick Jordan; Manpreet K. Kohli; Lilly Montague; Jiwoo Park; Seojun Park; Mira Rosario; Jisong L. Ryu; Jessica L. Ware
• Keywords: Coalescent theory; Effective population size; Demographic history

The advent of third generation sequencing technologies has led to a boom high-quality, chromosome level genome assemblies Odonata, but date, these have not been widely used estimate the demographic history sequenced species through time. Yet, an understanding how lineages responded past changes in climate is useful predicting their response current and future climate. Here, we utilized pairwise sequential markovian coalescent (PSMC) histories Sympetrum striolatum, Ischnura elegans, Hetaerina americana, three Odonata for which chromosome-length are available. elegans showed sharp decline effective population size around onset Pleistocene ice ages, while both S. striolatum H. americana more recent declines. All had relatively stable sizes over last one hundred thousand years. Although it important remain cautious when determining conservation status species, models did show any reason major concern tested. model I. confirmed prior research suggesting that will increase as temperatures rise.