Phenology of the transcriptome coincides with the physiology of double-crested cormorant embryonic development

Wallace, Sarah J.; Solla, Shane R. de; Langlois, Valérie S.

doi:10.1016/j.cbd.2022.101029

Cited by 1 publication

(1 citation statement)

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“…We detected differences in body mass among laurel and pine forest common chaffinches and we detected several genes involved in growth and body size, including apobec2 (Sato et al, 2010), cast (Zhang et al, 2012) and plppr5 (Hou et al, 2022), and genes involved in skeleton and bone formation including prr5l , (Wallace et al, 2022), cap2 (Kepser et al, 2019) and epha5 (Yamada et al, 2013). We also detected differences between both habitats in wing length, and we found as a candidate the cux1 gene, which has been shown to be involved in the regulation of joint formation in the limb development of chicks (Lizarraga et al, 2002) and is related to small wings in the flightless Galapagos cormorant (Burga et al, 2017).…”

Section: Discussionmentioning

confidence: 96%

Adaptive phenotypic and genomic divergence in the common chaffinch (Fringilla coelebs) following niche expansion within a small oceanic island

Recuerda

Palacios

Frías

et al. 2023

Journal of Evolutionary Biology

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According to models of ecological speciation, adaptation to adjacent, contrasting habitat types can lead to population divergence given strong enough environment‐driven selection to counteract the homogenizing effect of gene flow. We tested this hypothesis in the common chaffinch (Fringilla coelebs) on the small island of La Palma, Canary Islands, where it occupies two markedly different habitats. Isotopic (δ13C, δ15N) analysis of feathers indicated that birds in the two habitats differed in ecosystem and/or diet, and analysis of phenotypic traits revealed significant differences in morphology and plumage colouration that are consistent with ecomorphological and ecogeographical predictions respectively. A genome‐wide survey of single‐nucleotide polymorphism revealed marked neutral structure that was consistent with geography and isolation by distance, suggesting low dispersal. In contrast, loci putatively under selection identified through genome‐wide association and genotype‐environment association analyses, revealed amarked adaptive divergence between birds in both habitats. Loci associated with phenotypic and environmental differences among habitats were distributed across the genome, as expected for polygenic traits involved in local adaptation. Our results suggest a strong role for habitat‐driven local adaptation in population divergence in the chaffinches of La Palma, a process that appears to be facilitated by a strong reduction in effective dispersal distances despite the birds' high dispersal capacity.

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