Bapx1 is required for jaw joint development in amphibians
Bapx1 is required for jaw joint development in amphibians
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Bapx1 是两栖动物下颌关节发育所必需的
DOI:
10.1111/ede.12267
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发表时间:
2018
影响因子:
2.9
通讯作者:
Olsson
中科院分区:
文献类型:
--
作者:
Olsson
The acquisition of a movable jaw and a jaw joint are key events in gnathostome evolution. Jaws are derived from the neural crest derived pharyngeal skeleton and the transition from jawless to jawed vertebrates consists of major morphological changes, which must have a genetic foundation. Recent studies on the effects ofbapx1knockdown in fish and chicken indicate thatbapx1has acquired such a role in primary jaw joint development during vertebrate evolution, but evidence from amphibians is missing so far. In the present study, we useAmbystoma mexicanum,Bombina orientalis, andXenopus laevisto investigate the effects ofbapx1knockdown on the development of these three different amphibians. Using morpholinos we downregulated the expression ofbapx1and obtain morphants with altered mandibular arch morphology. In the absence ofbapx1Meckeĺs cartilage and the palatoquadrate jaw joint initially develop separately but during further development the joint cavity between both fills with chondrocytes. This results in the fusion of both cartilages and the loss of the jaw joint. Despite this the jaw itself remains usable for feeding and breathing. We show thatbapx1plays a role in jaw joint maintenance during development and that the morphants morphology possibly mirrors the morphology of the jawless ancestors of the gnathostomes.
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影响因子:
2.4
作者:
S. Kuratani
通讯作者:
S. Kuratani
影响因子:
1.4
作者:
Spurgeon, Anne
通讯作者:
Spurgeon, Anne
影响因子:
2.7
作者:
Tyler A. Square;D. Jandzik;Maria V. Cattell;A. Coe;Jacob Doherty;Daniel M. Medeiros
通讯作者:
Daniel M. Medeiros
DOI:
10.1242/dev.127.17.3815
发表时间:
2000
期刊:
Development (Cambridge, England)
影响因子:
--
作者:
Miller,CT;Schilling,TF;Lee,K;Parker,J;Kimmel,CB
通讯作者:
Kimmel,CB
影响因子:
4.4
作者:
K. Yoshiura;J. Murray
通讯作者:
K. Yoshiura;J. Murray