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An integrative approach to understanding bird origins

Published on Dec 12, 2014in Science 41.06
· DOI :10.1126/science.1253293
Xing Xu41
Estimated H-index: 41
(Chinese Academy of Sciences),
ZHOUZhonghe47
Estimated H-index: 47
(Chinese Academy of Sciences)
+ 4 AuthorsDavid J. Varricchio28
Estimated H-index: 28
(Montana State University)
Abstract
Research on the origin and evolution of birds has gathered pace in recent years, aided by a continuous stream of new fossil finds as well as molecular phylogenies. Bird origins, in particular, are now better understood than those of mammals, for which the early fossil record is relatively poor compared with that of birds. Xu et al. review progress in tracing the origins of birds from theropod dinosaurs, focusing especially on recent fossil finds of feathered dinosaurs of northeastern China. They integrate current research on developmental biology and functional anatomy with the paleontological record, to show how key features of birds—feathers, wings, and flight—originated and evolved, and radiated from their dinosaur forebears. Science , this issue [10.1126/science.1253293][1] [1]: /lookup/doi/10.1126/science.1253293
  • References (126)
  • Citations (98)
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References126
Newest
Published on May 1, 2015in Scientific Reports 4.12
Xing Xu41
Estimated H-index: 41
,
Fenglu Han11
Estimated H-index: 11
,
Qi Zhao8
Estimated H-index: 8
The homology of the ‘semilunate' carpal, an important structure linking non-avian and avian dinosaurs, has been controversial. Here we describe the morphology of some theropod wrists, demonstrating that the ‘semilunate' carpal is not formed by the same carpal elements in all theropods possessing this feature and that the involvement of the lateralmost distal carpal in forming the ‘semilunate' carpal of birds is an inheritance from their non-avian theropod ancestors. Optimization of relevant morp...
8 Citations Source Cite
Published on May 1, 2015in Scientific Reports 4.12
Alison E. Moyer7
Estimated H-index: 7
,
Wenxia Zheng10
Estimated H-index: 10
+ 4 AuthorsMary H. Schweitzer24
Estimated H-index: 24
Melanosomes or Microbes: Testing an Alternative Hypothesis for the Origin of Microbodies in Fossil Feathers
40 Citations Source Cite
Published on Feb 16, 2015in Annual Review of Animal Biosciences 6.78
Chih-Feng Chen15
Estimated H-index: 15
(National Chung Hsing University),
John Foley19
Estimated H-index: 19
+ 5 AuthorsCheng-Ming Chuong61
Estimated H-index: 61
(University of Southern California)
The feather is a complex ectodermal organ with hierarchical branching patterns. It provides functions in endothermy, communication, and flight. Studies of feather growth, cycling, and health are of fundamental importance to avian biology and poultry science. In addition, feathers are an excellent model for morphogenesis studies because of their accessibility, and their distinct patterns can be used to assay the roles of specific molecular pathways. Here we review the progress in aspects of devel...
40 Citations Source Cite
Published on Aug 1, 2014in Science 41.06
Michael S. Y. Lee50
Estimated H-index: 50
(University of Adelaide),
Andrea Cau14
Estimated H-index: 14
(University of Bologna)
+ 1 AuthorsGareth J. Dyke28
Estimated H-index: 28
(University of Southampton)
Recent discoveries have highlighted the dramatic evolutionary transformation of massive, ground-dwelling theropod dinosaurs into light, volant birds. Here, we apply Bayesian approaches (originally developed for inferring geographic spread and rates of molecular evolution in viruses) in a different context: to infer size changes and rates of anatomical innovation (across up to 1549 skeletal characters) in fossils. These approaches identify two drivers underlying the dinosaur-bird transition. The ...
95 Citations Source Cite
Published on Jul 25, 2014in Science 41.06
Pascal Godefroit20
Estimated H-index: 20
(Royal Belgian Institute of Natural Sciences),
Sofia M. Sinitsa2
Estimated H-index: 2
+ 5 AuthorsPaul Spagna7
Estimated H-index: 7
(Royal Belgian Institute of Natural Sciences)
Middle Jurassic to Early Cretaceous deposits from northeastern China have yielded varied theropod dinosaurs bearing feathers. Filamentous integumentary structures have also been described in ornithischian dinosaurs, but whether these filaments can be regarded as part of the evolutionary lineage toward feathers remains controversial. Here we describe a new basal neornithischian dinosaur from the Jurassic of Siberia with small scales around the distal hindlimb, larger imbricated scales around the ...
51 Citations Source Cite
Published on Jul 1, 2014in Nature 41.58
Christian Foth11
Estimated H-index: 11
,
Helmut Tischlinger3
Estimated H-index: 3
,
Oliver W. M. Rauhut28
Estimated H-index: 28
The discovery of numerous feathered dinosaurs and early birds has set the iconic 'Urvogel' (or 'first bird') Archaeopteryx in a broader context. But this venerable taxon still has the capacity to surprise. A newly discovered specimen from the Solnhofen limestone in Bavaria only the eleventh since 1861 shows a generous covering of feathers all over the body. Of particular note is a hindlimb covering resembling feathered 'trousers'. Analysis of feather distribution on the limbs and tail strongly s...
89 Citations Source Cite
Published on Jun 13, 2014in Science 41.06
John M. Grady4
Estimated H-index: 4
(University of New Mexico),
Brian J. Enquist65
Estimated H-index: 65
(University of Arizona)
+ 2 AuthorsFelisa A. Smith26
Estimated H-index: 26
(University of New Mexico)
Were dinosaurs ectotherms or fast-metabolizing endotherms whose activities were unconstrained by temperature? To date, some of the strongest evidence for endothermy comes from the rapid growth rates derived from the analysis of fossil bones. However, these studies are constrained by a lack of comparative data and an appropriate energetic framework. Here we compile data on ontogenetic growth for extant and fossil vertebrates, including all major dinosaur clades. Using a metabolic scaling approach...
60 Citations Source Cite
Published on Mar 1, 2014in Nature 41.58
Quanguo Li5
Estimated H-index: 5
,
Julia A. Clarke27
Estimated H-index: 27
+ 5 AuthorsMatthew D. Shawkey30
Estimated H-index: 30
Sampling of extant and fossil amniotes reveals that the diversity of melanosome morphologies increased sharply around the time of the origin of pinnate feathers in maniraptoran dinosaurs (the lineage leading to birds) and independently in mammals; lizard, turtle and crocodilian skin as well as archosaur filamentous body covering shows a limited diversity of melanosome forms, a pattern consistent with convergent changes in the melanocortin system of endothermic animals.
55 Citations Source Cite
Published on Mar 1, 2014in Developmental Biology 3.26
Qiqi Chu3
Estimated H-index: 3
(Fuzhou University),
Linyan Cai2
Estimated H-index: 2
(Fuzhou University)
+ 9 AuthorsCheng-Ming Chuong61
Estimated H-index: 61
(University of Southern California)
Avian feathers have robust growth and regeneration capability. To evaluate the contribution of signaling molecules and pathways in these processes, we profiled gene expression in the feather follicle using an absolute quantification approach. We identified hundreds of genes that mark specific components of the feather follicle: the dermal papillae (DP) which controls feather regeneration and axis formation, the pulp mesenchyme (Pp) which is derived from DP cells and nourishes the feather follicl...
15 Citations Source Cite
Published on Feb 1, 2014in Nature 41.58
Emma R. Schachner13
Estimated H-index: 13
(University of Utah),
Robert L. Cieri3
Estimated H-index: 3
(University of Utah)
+ 1 AuthorsC. G. Farmer21
Estimated H-index: 21
Unlike the tidal (in and out) breathing of mammals, bird lungs have unidirectional airflow patterns; here the savannah monitor lizard is shown to have unidirectional airflow too, with profound implications for the evolution of unidirectional airflow in reptiles, predating the origin of birds.
31 Citations Source Cite
Cited By98
Newest
Published on Jun 1, 2019in Trends in Ecology and Evolution 15.94
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Published on May 24, 2019in The ISME Journal 9.52
Veronika Gvoždíková Javůrková1
Estimated H-index: 1
(Czech University of Life Sciences Prague),
Jakub Kreisinger13
Estimated H-index: 13
(Charles University in Prague)
+ 6 AuthorsJiří Porkert
The functional relevance of microbiota is a key aspect for understanding host–microbiota interactions. Mammalian skin harbours a complex consortium of beneficial microorganisms known to provide health and immune-boosting advantages. As yet, however, little is known about functional microbial communities on avian feathers, including their co-evolution with the host and factors determining feather microbiota (FM) diversity. Using 16S rRNA profiling, we investigated how host species identity, phylo...
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Published on May 2, 2019in PLOS Computational Biology 3.96
Yaser Saffar Talori (Tsinghua University), Jing-Shan Zhao (Tsinghua University)+ 3 AuthorsJingmai K. O'Connor22
Estimated H-index: 22
(Chinese Academy of Sciences)
The origin of avian flight is one of the most controversial debates in Paleontology. This paper investigates the wing performance of Caudipteryx, the most basal non-volant dinosaur with pennaceous feathered forelimbs by using modal effective mass theory. From a mechanical standpoint, the forced vibrations excited by hindlimb locomotion stimulate the movement of wings, creating a flapping-like motion in response. This shows that the origin of the avian flight stroke should lie in a completely nat...
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Published on May 1, 2019in Nature 41.58
Min Wang30
Estimated H-index: 30
(Chinese Academy of Sciences),
Jingmai K. O’Connor9
Estimated H-index: 9
(Chinese Academy of Sciences)
+ 1 AuthorsZHOUZhonghe47
Estimated H-index: 47
(Chinese Academy of Sciences)
Powered flight evolved independently in vertebrates in the pterosaurs, birds and bats, each of which has a different configuration of the bony elements and epidermal structures that form the wings1,2. Whereas the early fossil records of pterosaurs and bats are sparse, mounting evidence (primarily from China) of feathered non-avian dinosaurs and stemward avians that derive primarily from the Middle–Upper Jurassic and Lower Cretaceous periods has enabled the slow piecing together of the origins of...
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Published on Apr 24, 2019in Alcheringa 1.03
Jun Chen , Robert Beattie7
Estimated H-index: 7
+ 3 AuthorsHaichun Zhang20
Estimated H-index: 20
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Published on Apr 18, 2019in Nature Reviews Neuroscience 32.63
Alain Chédotal58
Estimated H-index: 58
(University of Paris)
The spinal cord receives, relays and processes sensory information from the periphery and integrates this information with descending inputs from supraspinal centres to elicit precise and appropriate behavioural responses and orchestrate body movements. Understanding how the spinal cord circuits that achieve this integration are wired during development is the focus of much research interest. Several families of proteins have well-established roles in guiding developing spinal cord axons, and re...
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Published on Apr 1, 2019in Journal of Neuroscience Methods 2.67
Michael Salerno1
Estimated H-index: 1
(Stony Brook University),
Elizabeth Ferrer (Stony Brook University)+ 5 AuthorsP. Vaska23
Estimated H-index: 23
(Stony Brook University)
Abstract Background: Birds comprise the most diverse group of terrestrial vertebrates. This success likely is related to the evolution of powered flight over 75 mya. Modern approaches for studying brain function, however, have yet to be fully adapted and applied to birds, especially as they relate to specific behaviors including flight. New method: We have developed a comprehensive set of in vivo experimental methods utilizing PET imaging with F-18 labeled fluorodeoxyglucose (FDG) to study regio...
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Published on Feb 27, 2019in bioRxiv
Yonghua Wu (Northeast Normal University), Haifeng Wang (Stanford University)
The diapsid lineage (birds) and synapsid lineage (mammals), share a suite of functionally similar characteristics (e.g. endothermy) that are considered to be a result of their convergent evolution, but the candidate selections leading to this convergent evolution are still under debate. Here, we used a newly developed molecular phyloecological approach to reconstruct the diel activity pattern of the common ancestors of living birds. Our results strongly suggest that they had adaptations to noctu...
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