a_6.jpg a_6.jpg


Mechanismens of sexual selection in the common guppy

in Artikel 21.05.2018 17:58
von franzpeter | 15.250 Beiträge

Previous research has shown partial prezygotic isolation between two lineages of Poecilia reticulata: the common guppy and the endlers livebearer. Female mate choice is thought to drive this isolation. This isolation has resulted in morphological and behavioral divergence, and may signal incipient speciation. The endler morphotype is marked by distinct coloration patterns and an elongated body (1). Our experiments investigated the roles of visual and behavioral signals in determining female preference for their ancestral lineage. Female preference for males of her ancestral lineage could allow females to select for genes well suited for the environment, or be a result of run-away sexual selection since females do inherit trait preferences (2) and no genetic incompatibility between the populations has been observed.


Mit freundlichen Grüßen
nach oben springen
lockDas Thema wurde geschlossen.

0 Mitglieder und 5 Gäste sind Online

Forum Statistiken
Das Forum hat 1769 Themen und 16189 Beiträge.

Heute war 1 Mitglied Online :

Besucherrekord: 71 Benutzer (12.03.2015 19:47).

Xobor Einfach ein eigenes Forum erstellen