当前位置： SCI文献检索 > MOLECULAR PHYLOGENETICS AND EVOLUTION期刊下所有文献 > Return flight to the Canary Islands--the key role of peripheral populations of Afrocanarian blue tits (Aves: Cyanistes teneriffae) in multi-gene reconstructions of colonization pathways.

Return flight to the Canary Islands--the key role of peripheral populations of Afrocanarian blue tits (Aves: Cyanistes teneriffae) in multi-gene reconstructions of colonization pathways.

Abstract：

:Afrocanarian blue tits (Cyanistes teneriffae) have a scattered distribution on the Canary Islands and on the North African continent. To date, the Canary Islands have been considered the species' main Pleistocene evolutionary center, but their colonization pathways remain uncertain. We set out to reconstruct a dated multi-gene phylogeny and ancestral ranges for Cyanistes tit species including the currently unstudied, peripheral Libyan population of C. t. cyrenaicae. In all reconstructions the most easterly and westerly peripheral populations (in Libya and on La Palma) represented basal offshoots of C. teneriffae. These two peripheral populations shared all four major indels and differed in this respect from all other members of the Afrocanarian core group. The basal split of Afrocanarian blue tits from their European relatives was dated to the early Pliocene. The two ancestral area reconstructions were contradictory and suggested either a Canarian or a North African origin of C. teneriffae - but unambiguously ruled out a continental European ancestral range. We conclude that the peripheral populations of C. teneriffae represent relic lineages of a first faunal interchange, presumably downstream colonization from North Africa to the Canary Islands. Subsequent eastward stepping-stone colonization within the Canarian Archipelago culminated in a very recent late (possibly even post-) Pleistocene back-colonization from the Canary Islands to North Africa.

journal_name

Mol Phylogenet Evol

journal_title

Molecular phylogenetics and evolution

authors

Päckert M,Martens J,Hering J,Kvist L,Illera JC

doi

10.1016/j.ympev.2013.02.010

subject

Has Abstract

pub_date

2013-05-01 00:00:00

pages

458-67

issue

2

eissn

1055-7903

issn

1095-9513

pii

S1055-7903(13)00067-5

journal_volume

67

pub_type

杂志文章

相关文献

MOLECULAR PHYLOGENETICS AND EVOLUTION文献大全