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Titolo:
COMPLEX LIMITING BEHAVIOR OF MULTILOCUS GENETIC SYSTEMS IN CYCLICAL ENVIRONMENTS
Autore:
KIRZHNER VM; KOROL AB; NEVO E;
Indirizzi:
UNIV HAIFA,INST EVOLUT IL-31905 HAIFA ISRAEL UNIV HAIFA,INST EVOLUT IL-31905 HAIFA ISRAEL
Titolo Testata:
Journal of theoretical biology
fascicolo: 3, volume: 190, anno: 1998,
pagine: 215 - 225
SICI:
0022-5193(1998)190:3<215:CLBOMG>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
STABILIZING SELECTION; HAPLOID SELECTION; MAINTENANCE; DYNAMICS; POLYMORPHISM; VARIABILITY; MODELS; POPULATIONS; MUTATION; BALANCE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
38
Recensione:
Indirizzi per estratti:
Citazione:
V.M. Kirzhner et al., "COMPLEX LIMITING BEHAVIOR OF MULTILOCUS GENETIC SYSTEMS IN CYCLICAL ENVIRONMENTS", Journal of theoretical biology, 190(3), 1998, pp. 215-225

Abstract

Here we demonstrate that complex limiting behaviour (supercycles and chaotic-like phenomena) may arise in a rather broad and natural class of multilocus systems, both haploid and diploid, experiencing stabilizing selection with cyclically varying optima over a short period. These include loci with purely additive, dominant, or semidominant effects, with different types of their chromosome distribution. The observed complex dynamics appeared to manifest a certain stability with respectto disturbances of parameters specifying the structure of the selected system and environmental characteristics. This mode of multilocus dynamics by far exceeds the potential attainable under ordinary selection models resulting in simple behaviour. It may represent a novel evolutionary mechanism increasing genetic diversity over long time periods. This novel mechanism could contribute to the observation that biological diversity has increased over geological time regardless of the well-known massive extinctions. (C) 1998 Academic Press Limited.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 20:25:14