A Phylogenomic Study of Birds Reveals Their Evolutionary History

Hackett, Shannon J.; Kimball, Rebecca T.; Reddy, Srinivas K.; Bowie, Rauri C. K.; Braun, Edward L.; Braun, Michael J.; Chojnowski, Jena L.; Cox, W. Andrew; Han, Kin Lan; Harshman, John; Huddleston, Christopher J.; Marks, Ben D.; Miglia, Kathleen J.; Moore, William S.; Sheldon, Frederick H.; Steadman, David W.; Witt, Christopher C.; Yuri, Tamaki

doi:10.1126/science.1157704

Cited by 1,829 publications

(2,282 citation statements)

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“…1 Phylogeny of the 15 species used in this study. The tree is a compilation of four phylogenies (Stuart et al 2002;Springer and Murphy 2007;Hackett et al 2008;Prasad et al 2009). Branch lengths are best estimates from the cited phylogenies mortem.…”

Section: Tissue Collectionmentioning

confidence: 99%

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Activities of DNA base excision repair enzymes in liver and brain correlate with body mass, but not lifespan

Page

Stuart

2011

AGE

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Accumulation of DNA lesions compromises replication and transcription and is thus toxic to cells. DNA repair deficiencies are generally associated with cellular replicative senescence and premature aging syndromes, suggesting that efficient DNA repair is required for normal longevity. It follows that the evolution of increasing lifespan amongst animal species should be associated with enhanced DNA repair capacities. Although UV damage repair has been shown to correlate positively with mammalian species lifespan, we lack similar insight into many other DNA repair pathways, including base excision repair (BER). DNA is continuously exposed to reactive oxygen species produced during aerobic metabolism, resulting in the occurrence of oxidative damage within DNA. Shortpatch BER plays an important role in repairing the resultant oxidative lesions. We therefore tested whether an enhancement of BER enzyme activities has occurred concomitantly with the evolution of increased maximum lifespan (MLSP). We collected brain and liver tissue from 15 vertebrate endotherm species ranging in MLSP over an order of magnitude. We measured apurinic/ apyrimidinic (AP) endonuclease activity, as well as the rates of nucleotide incorporation into an oligonucleotide containing a single nucleotide gap (catalyzed by BER polymerase β) and subsequent ligation of the oligonucleotide. None of these activities correlated positively with species MLSP. Rather, nucleotide incorporation and oligonucleotide ligation activities appeared to be primarily (and negatively) correlated with species body mass.

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Section: Tissue Collectionmentioning

confidence: 99%

“…The phylogenetic tree was constructed from four phylogenies from which branch length estimates were taken (Stuart et al 2002;Springer and Murphy 2007;Hackett et al 2008;Prasad et al 2008) (Fig. 1).…”

Section: Statistical Analysesmentioning

confidence: 99%

Activities of DNA base excision repair enzymes in liver and brain correlate with body mass, but not lifespan

Page

Stuart

2011

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“…The flexural rigidity in the dorsoventral axis was also determined for jaws of the Double-crested Cormorant, a seabird that is distantly related to pelicans (Hackett et al, 2008). This analysis revealed a flexural rigidity distribution that is clearly not optimized for dorsoventral bending resistance (Fig.…”

Section: Feeding Mechanics In Rorquals and Pelicansmentioning

confidence: 99%

“…Cormorants are seabirds that may be distantly related to pelicans (Hackett et al, 2008), and snatch fish out of the water column with their beaks (Owre, 1967). American White Pelicans scoop mouthfuls of prey-laden water from the upper 1.25 m of the water column while floating on the water's surface (Anderson, 1991).…”

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confidence: 99%

Convergent Evolution Driven by Similar Feeding Mechanics in Balaenopterid Whales and Pelicans

Field

Lin

Ben-Zvi

et al. 2011

The Anatomical Record

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The feeding apparatuses of rorqual whales and pelicans exhibit a number of similarities, including long, kinetic jaws that increase gape size, and extensible tissue comprising the floor of the mouth. These specializations enable the engulfment of large volumes of prey-laden water in both taxa. However, the mechanics of engulfment feeding in rorquals and pelicans have never been quantitatively compared. Here, we use ''BendCT,'' a novel analytical program, to investigate the mechanical design of rorqual and pelican mandibles, to understand whether these bones show comparable designs for resisting similar hydrodynamical loads. We also compare the mechanical properties of the extensible tissue used during engulfment in rorquals and pelicans. We demonstrate that the evolutionary convergence in the feeding apparatus of rorquals and pelicans is more pronounced than has been recognized previously; both taxa exhibit mandibular flexural rigidity distributions suited for resisting dorsoventral bending stresses encountered while feeding, and possess similarly extensible tissue on the floor of their mouths. Anat Rec, 294:1273Rec, 294: -1282Rec, 294: , 2011. V V C 2011 Wiley-Liss, Inc.

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“…The phylogenetic tree (Fig. S1) was constructed from four phylogenies from which branch length estimates were taken (Stuart et al 2002;Springer and Murphy 2007;Gorbunova et al 2008;Hackett et al 2008;Prasad et al 2008); however, the analysis was repeated with all branch lengths set to one, as with a speciation model of character change (Price 1997). Statistical analyses within the intraspecies context (Snell dwarf mice) used a two-tailed t test to compare normal mice and Snell dwarf mice.…”

Section: Statistical Analysesmentioning

confidence: 99%

Enhanced protein repair and recycling are not correlated with longevity in 15 vertebrate endotherm species

Salway

Page

Faure

et al. 2010

AGE

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Previous studies have shown that longevity is associated with enhanced cellular stress resistance. This observation supports the disposable soma theory of aging, which suggests that the investment made in cellular maintenance will be proportional to selective pressures to extend lifespan. Maintenance of protein homeostasis is a critical component of cellular maintenance and stress resistance. To test the hypothesis that enhanced protein repair and recycling activities underlie longevity, we measured the activities of the 20S/26S proteasome and two protein repair enzymes in liver, heart and brain tissues of 15 different mammalian and avian species with maximum lifespans (MLSP) ranging from 3 to 30 years. The data set included Snell dwarf mice, in which lifespan is increased by ∼50% compared to their normal littermates. None of these activities in any of the three tissues correlated positively with MLSP. In liver, 20S/26S proteasome and thioredoxin reductase (TrxR) activities correlated negatively with body mass. In brain tissue, TrxR was also negatively correlated with body mass. Glutaredoxin (Grx) activity in brain was negatively correlated with MLSP and this correlation remained after residual analysis to remove the effects of body mass, but was lost when the data were analysed using Felsenstein's independent contrasts. Snell dwarf mice had marginally lower 20S proteasome, TrxR and Grx activities than normal controls in brain, but not heart tissue. Thus, increased longevity is not associated with increased protein repair or proteasomal degradation capacities in vertebrate endotherms.

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A Phylogenomic Study of Birds Reveals Their Evolutionary History

Cited by 1,829 publications

References 26 publications

Activities of DNA base excision repair enzymes in liver and brain correlate with body mass, but not lifespan

Activities of DNA base excision repair enzymes in liver and brain correlate with body mass, but not lifespan

Convergent Evolution Driven by Similar Feeding Mechanics in Balaenopterid Whales and Pelicans

Enhanced protein repair and recycling are not correlated with longevity in 15 vertebrate endotherm species

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