The balanced lethal system in Triturus newts originated in an instantaneous speciation event.
France, J. M.; de Visser, M. C.; Arntzen, J. W.; Babik, W.; Cvijanovic, M.; Ivanovic, A.; Smith, J.; Vuicc, T.; Wielstra, B.
Show abstract
Triturus newts are afflicted by a balanced lethal system causing the spontaneous death of half of their offspring. How could such a maladaptive trait evolve? We construct genetic maps for Triturus and its sister genus Lissotriton, identifying genes involved in the balanced lethal system. Triturus chromosome 1 has diverged into two versions, which each carry a single massive deletion that is compensated for by duplication of the same region in the alternate version - indicating that the balanced lethal system arose instantaneously, in a single macromutation. Simulations show that, counterintuitively, the deleterious nature of the rearranged chromosomes protects them against competition with the ancestral arrangement via reproductive isolation. We conclude that the origin of the Triturus balanced lethal system also led to instantaneous speciation.
Matching journals
The top 7 journals account for 50% of the predicted probability mass.
Similar papers in this journal
Similar papers in this journal
- Distinct patterns of genetic variation at low-recombining genomic regions represent haplotype structure 96%
- Mating strategy predicts gene presence/absence patterns in a genus of simultaneously hermaphroditic flatworms 95%
- Searching for intra-locus sexual conflicts in the three-spined stickleback (Gasterosteus aculeatus) genome 95%
Similar papers in this journal
- Chromosomal Fusions and Evolutionary Forces: Exploring theNeo-Sex Chromosome System of Anolis distichus 97%
- A lizard is never late: squamate genomics as a recent catalyst for understanding sex chromosome and microchromosome evolution 95%
- The revised reference genome of the leopard gecko (Eublepharis macularius) provides insight into the considerations of genome phasing and assembly 95%
"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.