Triassic limestone areas of Thuringia are well-known for their richness of hybrids between S. aria and S. torminalis (subgenus Tormaria ). Those have been originally described as endemic taxa (i.e. Sorbus heilingensis, S. isenacensis ). However, the former endemics have been recently synonymized with S . × decipiens ( Karpatiosorbus × hybrida (Bechst.) Sennikov & Kurtto) due to diploidy and putative sexuality. Generally, cross...

The observation of habitat‐specific phenotypes suggests the action of natural selection. The three‐spined stickleback ( Gasterosteus aculeatus ) has repeatedly colonized and adapted to diverse freshwater habitats across the northern hemisphere since the last glaciation, while giving rise to recurring phenotypes associated with specific habitats. Parapatric lake and river populations of sticklebacks harbour distinct parasite co...

Since the end of the Pleistocene, the three‐spined stickleback ( Gasterosteus aculeatus ) has repeatedly colonized and adapted to various freshwater habitats probably originating from ancestral marine populations. Standing genetic variation and the underlying genomic architecture both have been speculated to contribute to recent adaptive radiations of sticklebacks. Here, we expand on the current genomic resources of this fish...