Molecular phylogeny of the genus Buteo (Aves: Accipitridae) based on mitochondrial marker sequences

Riesing, Martin J.; Kruckenhauser, Luise; Gamauf, Anita; Haring, Elisabeth

doi:10.1016/s1055-7903(02)00450-5

Cited by 90 publications

(89 citation statements)

References 30 publications

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“…That is the case in buzzards Buteo spp., where a second highly variable non-coding region, designated the pseudocontrol region by Haring et al (1999), has been found to contain a greater genetic diversity than the CR (Kruckenhauser et al 2004). This region has also been found in other bird species (see Bensch and Hä rlid 2000;Eberhard et al 2001) and it has been successfully used in some molecular studies on raptors (Vä li 2002; Riesing et al 2003). Within this context, our results could be explained by the fact that the CR of Bonelli's eagle -or at least the fragment we have analysed -is not as variable as in other raptors studied to date.…”

Section: Discussionsupporting

confidence: 60%

Low mitochondrial DNA diversity in the endangered Bonelli’s Eagle (Hieraaetus fasciatus) from SW Europe (Iberia) and NW Africa

2007

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This study is an initial survey of the genetic diversity and population structure of the endangered Bonelli's Eagle (Hieraaetus fasciatus) in SW Europe (Iberia) and NW Africa, two locations where the species has undergone a severe decrease in numbers during the last decades. It is also the first study in which the mitochondrial control region (CR) has been used to study the genetic diversity and population structure of this species. Samples were obtained from 72 individuals from Spain, Portugal and Morocco, and a 253-bp fragment of the mitochondrial control region was amplified and sequenced. Only three polymorphisms were present, indicating low nucleotide and haplotype diversity. No evidence of genetic structure was found. Several hypotheses may explain these results, including a possible greater genetic diversity in other regions of the mitochondrial genome or the existence of a presumed ancient bottleneck (last glaciation), possibly followed by a human-induced more recent one (twentieth century).

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Section: Discussionsupporting

confidence: 60%

Low mitochondrial DNA diversity in the endangered Bonelli’s Eagle (Hieraaetus fasciatus) from SW Europe (Iberia) and NW Africa

2007

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“…We therefore generated four different phylogenetic trees based on the interordinal relationships provided in Sibley and Ahlquist (1990), Cracraft et al (2004), Livezey and Zusi (2007), and Hackett et al (2008). Because these studies focused on interordinal and -familial relationships, resolution at the species level was provided by additional sources (Brown and Toft, 1999;Riesing et al, 2003;Griffiths et al, 2004;Wink and Sauer-Gurth, 2004;Lerner and Mindell, 2005;Barrowclough et al, 2006;Wink et al, 2008;Wright et al, 2008). Genera and species not present in these studies were omitted from our phylogenetic tree because incorrect placement of species can result in an increased risk of error in calculating correlation coefficients (Symonds, 2002).…”

Section: Phylogenetic Comparative Methodsmentioning

confidence: 99%

Optic Foramen Morphology and Activity Pattern in Birds

Hall

Iwaniuk

Gutiérrez-Ibáñez

2009

The Anatomical Record

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The optic nerve is the sole output of visual information from the ganglion cell layer of the retina to the brain in vertebrates. The size of the optic nerve is predicted to be closely associated with activity pattern, and, in many birds, the size of the optic foramen approximates the size of the optic nerve. Specifically, nocturnal species should have relatively smaller optic foramina than diurnal species because of differences in retinal pooling between activity patterns. If optic foramen morphology varies predictably with activity pattern in birds, this variable may be useful for interpreting activity pattern for birds that do not have soft tissue available for study, specifically for fossils. Across 177 families (from 27 orders), we describe four different optic foramen morphologies, only one of which corresponds well with the size of the optic nerve and is therefore appropriate for activity pattern analyses. Here, we test our hypothesis that nocturnal species will have relatively smaller optic foramina than diurnal species, across all species that we measured that have a discrete optic foramen. Regression analyses using species as independent data points and using comparative methods yielded significant differences in optic foramen size between nocturnal and diurnal species relative to three variables: head length, orbit depth, and sclerotic ring inner diameter. Nocturnal species consistently exhibit significantly smaller relative optic foramen diameters than diurnal species. Our results indicate that optic foramen diameter, in combination with either the sclerotic ring or the orbit diameter, can be used to predict activity pattern.

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“…The CCR as a molecular marker for phylogenetic and population genetic studies was considered as extremely useful because of its high substitution rate (Väli, 2002;Riesing et al, 2003;Kruckenhauser et al, 2004). In the phylogenetic analyses of the genus Buteo (Riesing et al, 2003;Kruckenhauser et al, 2004), the results based on CCR sequences are in accordance with those from another mt marker sequence (nd6 gene) and the absence of intragenomic homology with the CR (as in the other members of Buteoninae) allows the conclusion that the CCR trees are based on orthologous sequence comparisons. In a CCR-based phylogenetic tree of five Aquila species presented by Väli (2002), only those sections were analyzed, which are present in all the investigated species.…”

Section: Cr and Wcr As Molecular Markersmentioning

confidence: 96%

Repeated sequence homogenization between the control and pseudo‐control regions in the mitochondrial genomes of the subfamily Aquilinae

et al. 2009

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In birds, the noncoding control region (CR) and its flanking genes are the only parts of the mitochondrial (mt) genome that have been modified by intragenomic rearrangements. In raptors, two noncoding regions are present: the CR has shifted to a new position with respect to the ''ancestral avian gene order,'' whereas the pseudo-control region (CCR) is located at the original genomic position of the CR. As possible mechanisms for this rearrangement, duplication and transposition have been considered. During characterization of the mt gene order in Bonelli's eagle Hieraaetus fasciatus, we detected intragenomic sequence similarity between the two regions supporting the duplication hypothesis. We performed intra-and intergenomic sequence comparisons in H. fasciatus and other falconiform species to trace the evolution of the noncoding mtDNA regions in Falconiformes. We identified sections displaying different levels of similarity between the CR and CCR. On the basis of phylogenetic analyses, we outline an evolutionary scenario of the underlying mutation events involving duplication and homogenization processes followed by sporadic deletions. Apparently, homogenization may easily occur if sufficient sequence similarity between the CR and CCR exists. Moreover, homogenization itself allows perpetuation of this continued equalization, unless this process is stopped by deletion. The Pandionidae and the Aquilinae seem to be the only two lineages of Falconiformes where homology between both regions is still detectable, whereas in other raptors no similarity was found so far. In these two lineages, the process of sequence degeneration may have slowed down by homogenization events retaining high sequence similarity at least in some sections.In contrast to the nuclear genome, where duplications and rearrangements are an important driving force of genome evolution, the mitochondrial (mt) genome of vertebrates has a more or less conserved structure. Nevertheless, modifications and rearrangements were detected in several groups of vertebrates. For example, the exchange of the positions of tRNA genes has been found in marsupials (Pääbo et al., '91),

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Molecular phylogeny of the genus Buteo (Aves: Accipitridae) based on mitochondrial marker sequences

Cited by 90 publications

References 30 publications

Low mitochondrial DNA diversity in the endangered Bonelli’s Eagle (Hieraaetus fasciatus) from SW Europe (Iberia) and NW Africa

Low mitochondrial DNA diversity in the endangered Bonelli’s Eagle (Hieraaetus fasciatus) from SW Europe (Iberia) and NW Africa

Optic Foramen Morphology and Activity Pattern in Birds

Repeated sequence homogenization between the control and pseudo‐control regions in the mitochondrial genomes of the subfamily Aquilinae

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