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001-es BibID:	BIBFORM069031
035-os BibID:	(cikkazonosító)11 (WoS)000401615300001 (Scopus)85019638384
Első szerző:	Holló Gábor (biológus-ökológus, biológiatanár)
Cím:	Demystification of animal symmetry: symmetry is a response to mechanical forces / Holló Gábor
Dátum:	2017
ISSN:	1745-6150
Megjegyzések:	Symmetry is an eye-catching feature of animal body plans, yet its causes are not wellenough understood. The evolution of animal form is mainly due to changes in generegulatory networks (GRNs). Based on theoretical considerations regardingfundamental GRN properties, it has recently been proposed that the animal genome,on large time scales, should be regarded as a system which can construct both themain symmetries - radial and bilateral - simultaneously; and that the expression of anyof these depends on functional constraints. Current theories explain biologicalsymmetry as a pattern mostly determined by phylogenetic constraints, and more bychance than by necessity. In contrast to this conception, I suggest that physical effects,which in many cases act as proximate, direct, tissue-shaping factors duringontogenesis, are also the ultimate causes - i.e. the indirect factors which provide aselective advantage - of animal symmetry, from organs to body plan level patterns. Inthis respect, animal symmetry is a necessary product of evolution. This propositionoffers a parsimonious view of symmetry as a basic feature of the animal body plan,suggesting that molecules and physical forces act in a beautiful harmony to createsymmetrical structures, but that the concert itself is directed by the latter.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk evolutionary constraints morphogenesis mechanical 31 forces bilateral symmetry radial symmetry body plan animal symmetry
Megjelenés:	Biology Direct. - 12 : 11 (2017), p. 1-18. -
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat DOI
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