Integrating coalescent and phylogenetic approaches to delimit species in the lichen photobiont Trebouxia.

Abstract excerpt

The accurate assessment of species boundaries in symbiotic systems is a prerequisite for the study of speciation, co-evolution and selectivity. Many studies have shown the high genetic diversity of green algae from the genus Trebouxia, the most common photobiont of lichen-forming fungi. However, the phylogenetic relationships, and the amount of cryptic diversity of these algae are still poorly understood, and an...

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