Sign in

Moritz Blumer

@moritzblumer.bsky.social
162 followers 298 following 16 posts

Postdoc @GeneticsCam. Interested in Genomics, Biodiversity, Speciation, Conservation 🐟🦇🐋🐛🐆. Formerly @goetheuni & @mpicbg. github.com/MoritzBlumer 🇪🇺

PostsRepliesMedia
Moritz Blumer @moritzblumer.bsky.social · 19/06/2025
Interestingly, we found strong evidence that at least three inversions are involved in sex determination in some lineages, while the same inversions do not determine sex in other groups.
100
Moritz Blumer @moritzblumer.bsky.social · 19/06/2025
Focusing on the SNPs from within the inversion regions that were most correlated with inversion state, we identified patterns of positive selection that were enriched for genes related to sensory perception.
100
Moritz Blumer @moritzblumer.bsky.social · 19/06/2025
... we believe that the most species rich and ecologically diverse subradiation arose from a hybridization event between the ancestors of two ecologically contrasting lineages: the riverine-like 𝐴. 𝑐𝑎𝑙𝑙𝑖𝑝𝑡𝑒𝑟𝑎 and the deepwater specialists 𝐷𝑖𝑝𝑙𝑜𝑡𝑎𝑥𝑜𝑑𝑜𝑛.
100
Moritz Blumer @moritzblumer.bsky.social · 19/06/2025
Using new chromosome-level assemblies and haplotagged (linked) reads of representatives of the major clades we confirmed that these regions are in fact inversions. Pairwise alignments also showed that the outlier region on chromosome 11 consists of two adjacent but co-segregating inversions.
100
Moritz Blumer @moritzblumer.bsky.social · 19/06/2025
Using windowed PCA and a new clustering approach we identified five chromosome-scale regions with aberrant phylogenetic patterns – consistent with large and divergent segregating haplotypes.
100
Moritz Blumer @moritzblumer.bsky.social · 19/06/2025
Check out our new paper about chromosomal inversions in Malawi cichlids! 🐟🧬 Available here without a paywall: hdl.handle.net/10067/214834... (click on the ‘Full text (open access)’ link).
A circular phylogeny of Malawi cichlids with inversion frequencies indicated for different taxa as rings around the tree.
22011