Exact(55)
One example is the significant hominin speciation and brain expansion event at ∼1.8 Ma that seems to have been coeval with the occurrence of highly variable, extensive, deep-water lakes.
This is an important expansion event in which rice reached north of the Qinling Mountains quite separated from the wild rices of the Yangtze watershed.
At two time points during the range expansion event, data sets comprised of a single haplotype from 200 randomly selected individuals were exported for analysis.
The currently available genetic evidence suggests a "single migration" model, in which both early and later Native American groups derive from one expansion event into the continent.
Simulated range expansions revealed directional patterns whereby inter-individual genetic distances were reduced in the direction of the expansion event (Fig. 3e, Table 1).
When the range expansion occurred, a lower overall proportion of the total genetic variation was carried along the leading edge of the expansion event.
Similar(5)
The development of fleshy fruits is characterized by cell division and expansion events that occur following fertilization.
Likewise, scenario-specific simulations allowed us to infer genetic structure patterns produced during range expansion events.
Subsequent computer simulations confirmed that directional patterns can be produced by expansion events.
Range expansion events have been dated by calculating Tau = 2 µt [69] based on mismatch distributions generated by ARLEQUIN [53].
These analyses provide strong evidence for past range expansion events from west to east across the arid zone, and for continuing eastward range expansion.
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