Complex evolution of East Asian Tertiary relict species revealed by the phylogeography of Lindera obtusiloba.

ABSTRACT:

Background

In East Asia, the evolutionary histories of Tertiary relicts are complex, involving not only southward retreats during the middle and late Tertiary but also repeated migrations northward or southward during the Quaternary. Three possible scenarios are hypothesized: High-Latitude Origin, Low-Latitude Origin, and Vicariance Origin. The phylogeography of Lindera obtusiloba is investigated using 27 independent nuclear low-copy genes to test these scenarios and explore key diversification processes.

Results

The genetic diversity and effective population size at low latitudes were approximately two/three times greater than those at high latitudes. A sharp genetic discontinuity with reciprocal monophyletic lineages and limited gene flow that diverged during the middle Pl

SUBMITTER: Ye JW 

PROVIDER: S-EPMC12801852 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature