S. M. Banerjee

The paper develops a tool for ancestry inference in three-way hybrids and reports a complex hybridization event between three swordtail fish species linked to anthropogenic disturbance.

The paper examines repeatability in local ancestry across hybrid swordtail fish populations and identifies shared genomic regions under selection.

The paper identifies a lethal mitonuclear incompatibility in swordtail fish hybrids involving three Complex I genes, showing non-additive genetic effects and inter-species transfer of incompatibility.

The paper identifies two genetically distinct subpopulations in swordtail fish hybrid zones, suggesting strong assortative mating and limited gene flow.

The paper investigates the genetic architecture of a sexually selected sword ornament in swordtail fish, identifying a major QTL and candidate genes, and finding evidence of selection against the trait in hybrid populations.