Molecular architecture and rates of DNA substitutions of the mitochondrial control region of cracid birds

Pereira, Sérgio Luiz; Grau, Erwin Tramontini; Wajntal, Anita

doi:10.1139/g04-009

Cited by 25 publications

(14 citation statements)

References 49 publications

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“…This observation is consistent with reports on low relative rates of CR evolution in the tiger salamander complex (Shaffer and McKnight, 1996;Samuels et al, 2005), the salamandrid salamanders (Steinfartz et al, 2000) and in birds (Randi and Lucchini, 1998;Crochet and Desmarais, 2000;Pereira et al, 2004). Steinfartz et al (2000) attributed the slow evolutionary rate to the shortness of the 5′ (ETAS) domain in salamanders.…”

Section: Structure and Variability Of The Sequencesupporting

confidence: 91%

“…Low relative rate of CR evolution is known also in birds (e.g. Randi and Lucchini, 1998;Crochet and Desmarais, 2000;Pereira et al, 2004). Three domains have been described in the vertebrate CR: the extended termination associated sequence (ETAS) domain, the central domain, and the conserved sequence block (CSB) domain (Sbisà et al, 1997;Saccone et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

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Structure and evolution of the mitochondrial control region and flanking sequences in the European cave salamander Proteus anguinus

Gorički

Trontelj

2006

Gene

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Section: Structure and Variability Of The Sequencesupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Structure and evolution of the mitochondrial control region and flanking sequences in the European cave salamander Proteus anguinus

Gorički

Trontelj

2006

Gene

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“…Characteristic structures of the control region in avian mtDNA were found in the complete nucleotide sequence of CR-2 in ALB 71 (P. albatrus) and are shown in Fig. 2b: C-string, putative termination-associated sequence (TAS) element, and TASs in domain I; F box, E box, C box, B box of Saunders & Edwards, Bird box, and B box in domain II; conserved sequence block (CSB) 1, CSB 3, and the AC-rich repeat sequence in domain III (Marshall and Baker 1997;Randi and Lucchini 1998;Hasegawa et al 1999;Yamamoto et al 2000;Eberhard et al 2001;Pereira et al 2004).…”

Section: Resultsmentioning

confidence: 99%

“…The PCR primer was labelled using a 5 0 oligonucleotide Texas Red labelling kit (Vistra), and the labelled primer was purified using a Seq-Pak Cartridge (Water). Dye-primer cycle sequencing was carried out using a Thermo Sequenase core sequencing kit with 7-deaza-dGTP (Vistra (Marshall and Baker 1997;Randi and Lucchini 1998;Hasegawa et al 1999;Yamamoto et al 2000;Pereira et al 2004). DDBJ/EMBL/GenBank accession number: AB254201 …”

Section: Amplification Of Control Region and Nucleotide Sequencingmentioning

confidence: 99%

Unexpectedly high genetic diversity of mtDNA control region through severe bottleneck in vulnerable albatross Phoebastria albatrus

et al. 2009

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In the late part of the nineteenth century and the early part of the last century, the short-tailed albatross Phoebastria albatrus was in danger of extinction owing to feather hunting. In the middle of the last century, the total number of this species was inferred to be approximately 50-60 with breeding occurring only on Torishima Island of the Izu Islands. Recently, the number of individuals has increased to more than 2,000 and that of their breeding islands to three, namely, Torishima Island, and Minamiand Kita-kojima Islands of the Senkaku Islands. Here, we show that the 44 short-tailed albatrosses we examined represent 29 haplotypes in the control region of mitochondrial DNA, and have a considerably higher genetic diversity than most avian species, but not very high in albatross species; the h and p were 0.96 and 0.013, respectively. However, the parsimony network clearly showed that many intermediate haplotypes were lost. It was concluded that the majority of the haplotypes in the founder population have been maintained. Judging from these findings and the exponential increase in the number of individuals, the present population of the short-tailed albatross seems not to be affected by inbreeding depression through a severe bottleneck. The conservation and expansion of their breeding grounds, and effective protection from bycatch mortality in foraging areas are important for the future survival of this species.

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“…To determine the mtDNA type of each individual, we PCR-amplified the third domain and part of the central domain of the control region using the primers L774-GAGACGGTTTGCGTATATGC [47], modified based on the sequence AY145306.1 of Bare-faced Curassow, Crax fasciolata , from GenBank) and H1251-TCTTGGCATCTTCAGTGCCATGC [48]. Numbers represent the position in the Gallus gallus map [48].…”

Section: Methodsmentioning

confidence: 99%

Recovering the Genetic Identity of an Extinct-in-the-Wild Species: The Puzzling Case of the Alagoas Curassow

et al. 2017

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The conservation of many endangered taxa relies on hybrid identification, and when hybrids become morphologically indistinguishable from the parental species, the use of molecular markers can assign individual admixture levels. Here, we present the puzzling case of the extinct in the wild Alagoas Curassow (Pauxi mitu), whose captive population descends from only three individuals. Hybridization with the Razor-billed Curassow (P. tuberosa) began more than eight generations ago, and admixture uncertainty affects the whole population. We applied an analysis framework that combined morphological diagnostic traits, Bayesian clustering analyses using 14 microsatellite loci, and mtDNA haplotypes to assess the ancestry of all individuals that were alive from 2008 to 2012. Simulated data revealed that our microsatellites could accurately assign an individual a hybrid origin until the second backcross generation, which permitted us to identify a pure group among the older, but still reproductive animals. No wild species has ever survived such a severe bottleneck, followed by hybridization, and studying the recovery capability of the selected pure Alagoas Curassow group might provide valuable insights into biological conservation theory.

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Molecular architecture and rates of DNA substitutions of the mitochondrial control region of cracid birds

Cited by 25 publications

References 49 publications

Structure and evolution of the mitochondrial control region and flanking sequences in the European cave salamander Proteus anguinus

Structure and evolution of the mitochondrial control region and flanking sequences in the European cave salamander Proteus anguinus

Unexpectedly high genetic diversity of mtDNA control region through severe bottleneck in vulnerable albatross Phoebastria albatrus

Recovering the Genetic Identity of an Extinct-in-the-Wild Species: The Puzzling Case of the Alagoas Curassow

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