Understanding the molecular basis of repeatedly evolved phenotypes can yield key insights
into the evolutionary process. Quantifying gene flow between populations is especially …

3. Results The current map and list of these 28 sites of high subterranean biodiversity
(Figure 1, Table 1) represent nearly all of the sites known to contain 25 or more stygobionts …

The Astyanax mexicanus complex includes two different morphs, a surface‐and a cave‐
adapted ecotype, found at three mountain ranges in Northeastern Mexico: Sierra de El Abra …

Symbiotic relationships between host and microbiome can play a major role in local
adaptation. Previous studies with freshwater organisms have shown that microbiome …

A new scientific view of evolution is emerging—one that challenges and expands our
understanding of how evolution works. Recent research demonstrates that organisms differ …

Cave colonization offers a natural laboratory to study an extreme environmental shift, and
diverse cave species from around the world often have converged on robust morphological …

Background Astyanax mexicanus from the river basins of the Gulf of Mexico slope are small
freshwater fish that usually live in large groups in different freshwater environments. The …

The ecological and genetic changes that underlie the evolution of host–microbe interactions
remain elusive, primarily due to challenges in disentangling the variables that alter …

Cave-adapted animals provide a unique opportunity to study the evolutionary mechanisms
underlying phenotypic, metabolic, behavioral, and genetic evolution in response to cave …

Astyanax mexicanus offers a unique model for studying parallel evolution, with cave-
dwelling forms arising from at least two distinct surface lineages. Here, we examined …