Mitochondrial genetic differentiation between populations of Oncorhynchus mykiss in different rivers and drainages in Oregon. Partial Figure 4 from Weitemier et al. (2021).
This week we are reading:
Weitemier, K., B. E. Penaluna, L. L. Hauck, L. J. Longway, T. Garcia, and R. Cronn. 2021. Estimating the genetic diversity of Pacific salmon and trout using multigene eDNA metabarcoding. Molecular ecology. doi: 10.1111/mec.15811
Expanding the utility of eDNA analyses to gain insights on population genetics (local diversity and differentiation between aggregations or sampling sites)
Kokanee in Lake Tahoe (Hemming on Wikimedia Commons - license CC BY-SA 4.0)
This week we are reading:
Setzke, C., C. Wong, and M. A. Russello. 2021. Genotyping-in-Thousands by sequencing of archival fish scales reveals maintenance of genetic variation following a severe demographic contraction in kokanee salmon. Scientific reports 11:22798. doi: 10.1038/s41598-021-01958-0
Leveraging archival samples and targeted genotyping by sequencing to examine historical demography of a population of freshwater resident Onchorhynchus nerka - 'kokanee'.
Coregonus artedi (New York State Department of Environmental Conservation - license cc-by-nc)
This week we are reading:
Ackiss, A. S., M. R. Magee, G. G. Sass, K. Turnquist, P. B. McIntyre, and W. A. Larson. 2021. Genomic and environmental influences on resilience in a cold‐water fish near the edge of its range. Evolutionary applications. doi: 10.1111/eva.13313
We are back to population genetics and coregonins. This week we are reading a study of genetic variability among populations of cisco in the 'mid west'. The study explores links between environmental factors and the abundance and distribution of genetic diversity.
Gymnocypris eckloni (Information Center - Chinese Academy of Fishery Sciences - license cc-by-nc)
This week we are reading:
Lei, Y., L. Yang, Y. Zhou, C. Wang, W. Lv, L. Li, and S. He. 2021. Hb adaptation to hypoxia in high-altitude fishes: Fresh evidence from schizothoracinae fishes in the Qinghai-Tibetan Plateau. International journal of biological macromolecules 185:471–484. doi: 10.1016/j.ijbiomac.2021.06.186
This week are reading an examination of some of the physiological adaptations seen in freshwater fishes living in the low oxygen conditions of high-altitude rivers and streams
Melanocetus johnsonii female with attached male (from Figure 1, Swann et al., 2020)
This week we are reading:
Swann, J. B., S. J. Holland, M. Petersen, T. W. Pietsch, and T. Boehm. 2020. The immunogenetics of sexual parasitism. Science 369:1608–1615. doi: 10.1126/science.aaz9445
We are shifting gears to a discussion on how the genomic architectures of complex traits are reconfigured as those complex traits adapt to support novel physiologies.
Huchen (Hucho hucho) swimming in the Drina river (Wikipedia).
This week we are reading:
Galland, L. M., J. B. Simmons, J. P. Jahner, A. R. Luzuriaga-Neira, M. R. Sloat, S. Chandra, Z. Hogan, O. P. Jensen, and T. L. Parchman. 2021. Hierarchical genetic structure and implications for conservation of the world’s largest salmonid, Hucho taimen. Scientific reports 11:1–15. doi: 10.1038/s41598-021-99530-3
We are sticking to the Beringian phylogeography theme. This week we are looking at a salmonid that did not make the jump across continents and shows marked genetic differentiation between Arctic and Pacific drainages.
This week we are reading:
Morgan, T. D., C. F. Graham, A. G. McArthur, A. R. Raphenya, D. R. Boreham, R. G. Manzon, J. Y. Wilson, S. L. Lance, K. L. Howland, P. H. Patrick, and C. M. Somers. 2018 Journal canadien des sciences halieutiques et aquatiques 75:836–849. doi: 10.1139/cjfas-2016-0528
We will be discussing this study in the context of Beringian freshwater fish biogeography and how modern genomic tools can expand what is known about the history of freswhater fishes that now occupy this region.
