Phylogenetics of the common raven complex (Corvus: Corvidae) and the utility of ND4, COI and intron 7 of the β‐fibrinogen gene in avian molecular systematics

  title={Phylogenetics of the common raven complex (Corvus: Corvidae) and the utility of ND4, COI and intron 7 of the $\beta$‐fibrinogen gene in avian molecular systematics},
  author={Chris R. Feldman and Kevin E Omland},
  journal={Zoologica Scripta},
The common raven (Corvus corax) is one of the most widely distributed and recognizable avian species in the world. Recent molecular work, however, described two mitochondrial lineages of the common raven, termed the Holarctic clade and the California clade, and questioned the monophyly of this taxon by placing the Chihuahuan raven (C. cryptoleucus) sister to the California clade. We evaluated this phylogenetic hypothesis with additional sequence data and increased taxon sampling. We used ∼3.7… 
Sequencing of the complete mitochondrial genome of the common raven Corvus corax (Aves: Corvidae) confirms mitogenome-wide deep lineages and a paraphyletic relationship with the Chihuahuan raven C. cryptoleucus
Phylogenies constructed from whole mitogenomes recovered the previously found mitochondrial sister relationship between the commonRaven California clade and the Chihuahuan raven, which strengthens the hypothesis that mtDNA paraphyly in the common raven results from speciation reversal of previously distinct Holarctic and California lineages.
DNA barcodes and insights into the phylogenetic relationships of Corvidae (Aves: Passeriformes)
COI gene data provided good evidence for the monophyly of the Corvidae and analysis of COI genes supported the others genera fell into two clades.
Genetic divergences and intraspecific variation in corvids of the genus Corvus (Aves: Passeriformes: Corvidae) - a first survey based on museum specimens
The distribution of plumage colour in the phylogenetic tree indicates that the pale markings evolved several times independently, and confirms earlier assumptions of a Palearctic origin of the genus Corvus with several independent colonizations of the Nearctic and the Aethiopis.
Canary Island Ravens Corvus corax tingitanus have distinct mtDNA
The present study sought to elucidate further the phylogenetics of the ‘Holarctic clade’ by examining an additional C. corax race: C. tingitanus, restricted to the Canary Islands and Morocco and can be distinguished by its size and ‘oily’ plumage gloss.
Random interbreeding between cryptic lineages of the Common Raven: evidence for speciation in reverse
It is argued that the mtDNA clades have remerged in this population, likely due to a lack of ecological or signal differentiation between individuals in each lineage, and phylogeographic structure in mtDNA is a reflection of likely past isolation rather than currently differentiated species.
Genetic signatures of intermediate divergence: population history of Old and New World Holarctic ravens (Corvus corax)
This work develops a conceptual framework and terminology for thinking about the stages of ‘intermediate polyphyly’, and uses the Holarctic clade of common ravens, found throughout much of Eurasia and North America, as a case study of these stages of intermediate divergence.
Two sympatric lineages of the Raven Corvus corax jordansi coexist on the Eastern Canary Islands
This work revisited the issues of ravens on the Canary Islands and collected additional samples from other Canarian Islands as well as from other populations in Northern Africa and Europe, finding that on at least one of these islands the Canarian and the Holarctic lineages coexist.
Phylogeographic patterns in widespread corvid birds.


The utility of DNA sequences of an intron from the beta-fibrinogen gene in phylogenetic analysis of woodpeckers (Aves: Picidae).
The ability of the 7 intron of beta-fibrinogen to provide well resolved, independent gene trees for recently evolved groups and establishes it as a source of sequences to be used in other phylogenetic studies are demonstrated.
The phylogenetic utility of cytochrome b: lessons from bufonid frogs.
  • A. Graybeal
  • Biology
    Molecular phylogenetics and evolution
  • 1993
The results show that the amino acid sequence of cytochrome b evolves differently in Bufonidae than expected and provides surprisingly little information about old divergences in BUFonidae, and phylogenetic studies applying particular genes to new groups should begin with preliminary surveys of exemplar taxa representing the range of divergence times within the group to estimate the likely phylogenetic utility of that gene in that group.
Comparative evolution of the mitochondrial cytochrome b gene and nuclear beta-fibrinogen intron 7 in woodpeckers.
This study sequenced intron 7 of the beta-fibrinogen gene and compared the phylogenetic signal and nucleotide substitution properties of this DNA sequence with that of mitochondrial-encoded cytochrome b from a previous study, suggesting that introns will be useful for phylogenetic studies of recently evolved groups.
A phylogeny for the seven species of doves in the genus Zenaida is reconstructed on the basis of a combined analysis of mitochondrial (ND2 and cytochrome b) and nuclear (fibrinogen intron 7) DNA sequences.
Higher-level phylogeny of new world vireos (aves: vireonidae) based on sequences of multiple mitochondrial DNA genes.
Although the closest living relative of vireonids remains unidentified, broad-scale sequencing of additional extant corvoids with multiple molecular markers should further elucidate Old World alliances.
Mitochondrial DNA Sequence Divergence and Phylogenetic Relationships among Eight Chromosome Races of the Sceloporus Grammicus Complex (Phrynosomatidae) in Central Mexico
A single most-parsimonious tree was selected from among these on the basis of a new character-weighting method that takes into account the observed frequencies of all 12 possible substitutions for protein genes.
A test of a mitochondrial gene-based phylogeny of woodpeckers (genus Picoides) using an independent nuclear gene, beta-fibrinogen intron 7.
The Picoides species tree clearly shows that many morphological and behavioral characters used to lump species into this single genus have evolved by convergent evolution, and suggests that PICOides is actually a conglomerate of several smaller groups.
Phylogeny and character evolution in the Empidonax group of tyrant flycatchers (Aves: Tyrannidae): a test of W. E. Lanyon's hypothesis using mtDNA sequences.
We sequenced mitochondrial DNA from four protein-coding genes for 26 taxa to test W. E. Lanyon's hypothesis of intergeneric relationships and character evolution in the Empidonax group of tyrant
A novel phylogenetic marker, a region of the nuclear gene ornithine decarboxylase (ODC) spanning from exon 6 to exon 8, was sequenced in 10 oriole species, supporting the conclusion that plumage evolution in the New World orioles has been highly homoplastic.
Analyses of mitochondrial DNA nest ratite birds within the Neognathae: supporting a neotenous origin of ratite morphological characters
The findings suggest that the morphological characteristics of the ratite species are secondarily acquired, probably through neoteny and that the ratites are descendants of flying, neognathous ancestors.