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@felixvaux.bsky.socialOct 6, 2026, 9:31 PM

Intriguing pre-print on European flat oyster chromosomal inversions and genomic islands: doi.org/10.64898/202...

Also includes some relevant findings for the geographic structuring previously reported for potential #Bonamia tolerance.

#genomics #evolution #ecology

Figure 1. A Map of sampling locations. Circles indicate the sampling locations used in this project. Squares represent the additional sampling locations included by Lapègue et al. (2023). Colours indicate the genetic clusters assigned by Lapègue et al. (2023). Dashed line indicating proposed regional split between Northern European Seas and Southern European Seas. Additional labels indicating proposed regional assignments (R1, R2), and proposed lineage assignments (L1, L2). Note that one North Sea sample in our study originates from Denmark. B Corresponding principal components analysis of the using 423,929 SNPs. Population indicated by colour (Blue: Atlantic, Purple: North Sea, Green: western Mediterranean, Red: Black Sea). Dashed line indicating proposed regional split between Northern European Seas and Southern European Seas. Additional labels indicating proposed regional assignments (R1, R2), and proposed lineage assignments (L1, L2).Figure 2. Frequency of inversion homokaryotypes and heterokaryotypes for the inversions present on A chromosome 4, B chromosome 5, and C chromosome 9. Note that A and B inversion alleles are arbitrarily assigned.