Rapid turnover of sex chromosomes likely drives speciation in Neotropical armored catfish Harttia (Siluriformes, Loricariidae)
de Menezes Cavalcante Sassi, F.; Santos de Souza, F. H.; Shams, F.; Fernandez Perez, M.; Ezaz, T.; Deon, G. A.; Xu, L.; Cioffi, M. d. B.
Show abstract
The genus Harttia represents an important repository of multiple sex chromosomes, as they are found in more than a quarter of its valid species with distinct degrees of heteromorphism. We demonstrate that the recent and independent emergence of two distinct multiple sex chromosome systems (X1X2Y and XY1Y2) is associated with accelerated speciation rates. Using DArTseq data from 17 Harttia species, we investigate the sex chromosomes evolution and potential role in diversification. A time-calibrated phylogeny revealed main divergences occurring from 6 to 10 Mya, coinciding with Amazon River formation and other core river capture events in South America. Reconstruction of ancestral states (areas and chromosome number), combined with the identification of sex-linked markers, suggests the ancestor carried a karyotype of 2n=58 and homomorphic XY, occupying either the South and Southeast Atlantic drainages or the Eastern Amazon. These findings underscore the potential contribution of multiple sex chromosomes and turnovers in accelerating speciation.
Matching journals
The top 4 journals account for 50% of the predicted probability mass.
Similar papers in this journal
- Lizards on a sky archipelago: Genomic approaches to the evolution of the mountain genus Iberolacerta 98%
- A molecular phylogeny of forktail damselflies (genus Ischnura) reveals a dynamic macroevolutionary history of female colour polymorphisms 97%
- Large-scale phylogenomics of the genus Macrostomum (Platyhelminthes) reveals cryptic diversity and novel sexual traits 97%
Similar papers in this journal
- Genomic evidence of speciation by fusion linked to trophic niche expansion in a recent radiation of grasshoppers 96%
- Genome size evolution and phenotypic correlates in the poison frog family Dendrobatidae 96%
- The rapid radiation of Bomarea (Alstroemeriaceae: Liliales), driven by the rise of the Andes 95%
Similar papers in this journal
- Genomic, phenotypic and environmental correlates of speciation in the midwife toads (Alytes) 97%
- Phylogenomics unravels speciation patterns in temperate-montane plant species: a case study on the recently radiating Ranunculus auricomus species complex 97%
- Population genomics of adaptive radiations: Exceptionally high levels of genetic diversity and recombination in an endemic spider from the Canary Islands 96%
Similar papers in this journal
- Genetic sex determination in three closely related hydrothermal vent gastropods, including one species with intersex individuals 97%
- Recent neo-X and Y sex chromosomes in an ant cricket 96%
- Punctual ecological changes rather than global factors drive species diversification and the evolution of wing phenotypes in Morpho butterflies. 95%
Similar papers in this journal
- Sexual signals persist over deep time: ancient co-option of bioluminescence for courtship displays in cypridinid ostracods 97%
- Phylogenomics of piranhas and pacus (Serrasalmidae) uncovers how convergent diets obfuscate traditional morphological taxonomy. 96%
- Phylogenomic Discordance in the Eared Seals is best explained by Incomplete Lineage Sorting following Explosive Radiation in the Southern Hemisphere 96%
"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.