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001-es BibID:	BIBFORM084949
Első szerző:	Holló Gábor (biológus-ökológus, biológiatanár)
Cím:	A new paradigm for animal symmetry / Holló Gábor
Dátum:	2015
ISSN:	2042-8898 2042-8901
Megjegyzések:	My aim in this article is to soften certain rigid concepts concerning the radial and bilateral symmetry of the animal body plan, and to offer a more flexible framework of thinking for them, based on recent understandings of how morphogenesis is regulated by the mosaically acting gene regulatory networks. Based on general principles of the genetic regulation of morphogenesis, it can be seen that the difference between the symmetry of the whole body and that of minor anatomical structures is only a question of a diverse timing during development. I propose that the animal genome, as such, is capable of expressing both radial and bilateral symmetries, and deploys them according to the functional requirements which must be satisfied by both the anatomical structure and body as a whole. Although it may seem paradoxical, this flexible view of symmetry, together with the idea that symmetry is strongly determined by function, bolsters the concept that the presence of the two main symmetries in the animal world is not due to chance: they are necessary biological patterns emerging in evolution.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk animal symmetry body plan bilateral symmetry radial symmetry gene regulatory networks
Megjelenés:	Interface Focus. - 4 (2015), p. 1-10. -
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