Two new hybrid populations expand the swordtail hybridization model system

Daniel Powell, Ben Moran, Bernard Kim, Shreya Banerjee, Stepfanie Aguillon, Paola Fascinetto-Zago, Quinn Langdon & Molly Schumer
Natural hybridization events provide unique windows into the barriers that keep species apart as well as the consequences of their breakdown. Here we characterize hybrid populations formed between the northern swordtail fish Xiphophorus cortezi and X. birchmanni from collection sites on two rivers. We use simulations and new genetic reference panels to develop sensitive and accurate local ancestry calling in this novel system. Strikingly, we find that hybrid populations on both rivers consist of two...
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2 downloads reported since publication in 2021.

These counts follow the COUNTER Code of Practice, meaning that Internet robots and repeats within a certain time frame are excluded.
What does this mean?