Makale detayı · 2026
Genome-wide SNP and mtDNA phylogeny of blind mole rats (Spalacinae Gray, 1821) reflects a complex history of relictualism, expansion, and speciation.
Zoological Journal of the Linnean Society
- Yıl
- 2026
- ISSN
0024-4082- Tür
- article
Veri kaynağı ayrımı
- YÖKSİS YÖKSİS makale kaydı
- OpenAlex OpenAlex zenginleştirmesi (özet, atıf, konular)
Özet
İngilizce (OpenAlex)
Abstract The evolutionary history and systematics of blind mole rats (BMR), subfamily Spalacinae (Gray, 1821), are complicated by uneven geographic sampling and insufficient phylogenetic resolution provided by a few individual gene sequences. We combined genome-wide SNPs (ddRAD-seq) and mitochondrial cytochrome b (cytb) sequences with cytogenetic and biogeographic context to resolve the key phylogenetic relationships in this diverse group, using a large set of samples from different parts of the subfamily’s entire geographic range. The previously resolved phylogeny within the Spalax (Gündenstaedt, 1770) genus is confirmed and refined. In the genus Nannospalax (Palmer, 1903), all sampled populations and chromosomal forms were grouped into four major clades: three of them had originated and diversified in Anatolia and the Northern Levant, while the fourth colonized the European subcontinent. Molecular dating suggested that intensive divergence in all branches of the subfamily occurred within the past 1 Myr, but there was a pause in the speciation process after the Middle Pleistocene Transition, between approximately 0.6 and 0.4 Mya. Presently, multiple and highly divergent subclades are found in small and fragmented geographic ranges, but a few occupy large continuous territories and demonstrate comparatively low levels of genetic diversity.
Konular
- Evolution and Paleontology Studies
- Paleontology and Stratigraphy of Fossils
- Chromosomal and Genetic Variations
Birincil konu Evolution and Paleontology Studies