Development of the lamprey velum and implications for the evolution of the vertebrate jaw
Development of the lamprey velum and implications for the evolution of the vertebrate jaw
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七鳃鳗软腭的发育及其对脊椎动物下巴进化的影响
DOI:
10.1002/dvdy.243
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发表时间:
2020
影响因子:
2.5
通讯作者:
Wada Hiroshi
中科院分区:
文献类型:
--
作者:
Yokoyama Hiromasa;Yoshimura Miho;Suzuki Daichi G.;Higashiyama Hiroki;Wada Hiroshi
BackgroundThe vertebrate jaw is thought to have evolved through developmental modification of the mandibular arch. An extant jawless vertebrate, the lamprey, possesses a structure called “velum”—a mandibular arch derivative—in addition to the oral apparatus. This leads us to assess the velum's possible contribution to the evolution of jaws.ResultsThe velar muscles develop from progenitor cells distinct from those from which the oral muscles develop. In addition, the oral and velar regions originate from the different sub‐population of the trigeminal neural crest cells (NCCs): the former region receives NCCs from the midbrain, whereas the latter region receives NCCs from the anterior hindbrain. The expression of patterning genes (eg,DlxAandMsxA) is activated at a later developmental stage in the velum compared to the oral region, and more importantly, in different cells from those in the oral region.ConclusionThe lamprey mandibular arch consists of two developmental units: the anterior oral unit and the posterior velar unit. Because structural elements of the lamprey velum may be homologous to the jaw, the evolution of vertebrate jaws may have occurred by the velum being released from its functional roles in feeding or respiration in jawless vertebrates.
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影响因子:
--
作者:
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通讯作者:
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DOI:
--
发表时间:
1993
期刊:
Development, Growth and Differentiation
影响因子:
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2007
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Journal of experimental zoology. Part B, Molecular and developmental evolution
影响因子:
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期刊:
Journal of Experimental Zoology (Mol. Dev. Evol.) 第310B巻第7号
影响因子:
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DOI:
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发表时间:
2011
期刊:
Journal of Experimental Zoology, Part B Molecular and Developmental Evolution
影响因子:
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作者:
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通讯作者:
Hiroshi Wada