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Title

Variation in candidate genes CLOCK and ADCYAP1 does not consistently predict differences in migratory behavior in the songbird genus Junco

AuthorsPeterson, Mark P.; Abolins-Abols, M.; Atwell, J. W.; Rice, Rebeca J.; Milá, Borja ; Ketterson, E. D.
KeywordsPrediction
Songbird
Phenology
Molecular genetics
Migrant bird
Migrant
Human
Genotype phenotype correlation
Genotype
Genetic variability
Genetic polymorphism
Gene Sequence
Gene locus
Gene
Environmental factor
CLOCK gene
Article
Animal behavior
Allele
ADCYAP1 gene
Molecular mechanics
Issue Date22-Apr-2013
PublisherFaculty of 1000
CitationF1000 Research 2: 1-18 (2013)
AbstractRecent studies exploring the molecular genetic basis for migratory variation in animals have identified polymorphisms in two genes (CLOCK and ADCYAP1) that are linked to circadian rhythms and correlate with migratory propensity and phenology among individuals and populations. Results from these initial studies are mixed, however, and additional data are needed to assess the generality and diversity of the molecular mechanisms that regulate the biology of migration. We sequenced CLOCK and ADCYAP1in 15 populations across the two species of the avian genus Junco, a North American lineage in which multiple recently diverged subspecies and populations range from sedentary to long-distance migrants.We found no consistent associations between allele length and migratory status across the genus for either CLOCK or ADCYAP1. However, within two subspecies groups, populations that migrate longer distances have longer CLOCK alleles on average. Additionally, there was a positive relationship between ADCYAP1 allele length and migratory restlessness (zugunruhe) among individuals within one of two captivepopulations studied-a result similar to those reported previously within captive blackcaps (Sylvia atricapilla). We conclude that, while both ADCYAP1 and CLOCK may correlate with migratory propensity within or among certain populations or species, previously identified relationships between migratory behavior and sequence variants cannot be easily generalized across taxa.
DescriptionVersion 2 of the article published on April 22, 2013.
Publisher version (URL)http://dx.doi.org/10.12688/f1000research.2-115.v2
URIhttp://hdl.handle.net/10261/113073
DOIhttp://dx.doi.org/10.12688/f1000research.2-115.v2
ISSN1759-796X
Appears in Collections:(MNCN) Artículos
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