Sentence examples for multiple speciation events from inspiring English sources

We found evidence of gene duplication in four taxa, but phylogenetic analysis suggested that duplicate genes have generally not persisted through multiple speciation events.

Multiple speciation events create a tree structured system of relationships between species.

One important implication of this scenario, if true, is that polygyny may not have arisen in the common ancestor of the socially polymorphic fire ants, with the b-like lineage persisting through multiple speciation events [10], [11].

Migration may have evolved repeatedly and independently in the temperate zone and later in the tropics as multiple speciation events potentially occurred in tropical regions following northern climate change.

Hard polytomies reflect genuine multiple speciation events, so they cannot be represented as bifurcating trees.

These differences could have evolved through multiple speciation events, each involving the fixation of a single chromosomal rearrangement.

Compatibility treats polytomies as soft facts: if an input tree node has degree four or more, it is not because there were multiple simultaneous speciation events, but because there is not enough information to resolve the sequence of speciation.

The cause of the multiple defining speciation events of the rhinoceros family is unknown, but can be identified as having occurred during the early Oligocene (33.9 ± 0.1 – 28.4 ± 0.1 Myr ago).

We used the AU test to evaluate the possibility that the regions represent hard polytomies, i.e. polyfurcations stemming from multiple, virtually instantaneous speciation events.

Many bursts of mutations caused by the most active TEs are likely to have catastrophic consequences and the resulting multiple extinctions of small populations are expected to accompany speciation events.

Students can then move into the molecular activities and discuss speciation events and how different pollinator syndromes have evolved multiple times.