The genetics of migration
The genetics of migration
From quantitative genetics analyses of cross-breeding and selection experiments, it has been determined that a significant proportion of variability in migratory phenotype has a genetic basis, but the number and identity of genes involved in modulating the migratory phenotypes are still largely unknown. In this chapter the current understanding of the genetic architecture of migratory phenotypes is outlined, and molecular genetics tools useful in this context are introduced. How recent achievements in genomics will provide previously inaccessible ways to generate fully sequenced and annotated genomes of migratory species in the near future are highlighted. Birds have the longest tradition in migration studies, and many of the examples provided refer to experiments on migratory birds. However, a growing number of studies are conducted in a wide range of taxa, particularly in fish and insects.
Keywords: migratory divide, hybrid zone, migratory phenotype, molecular marker, timing, distance, direction
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