Role of sex and migration in adaptation to sink environments

摘要: Understanding the effects of sex and migration on adaptation to novel environments remains a key problem in evolutionary biology. Using single-cell alga Chlamydomonas reinhardtii, we investigated how affected rates rescue sink environment, subsequent changes fitness following rescue. We show that affect both rate adaptation. However, their combined change as populations adapt habitat. Both independently increased rescue, but effect improvements, initial changed with migration, was beneficial absence constraining when migration. These results suggest are during stages adaptation, can become detrimental population adapts its environment.