Sentence examples for means of speciation from inspiring English sources

For example, previous research by geneticist Stephen Oliver of the University of Manchester, U.K., and colleagues suggested that chromosomal flip-flopping in yeast was not the primary means of speciation, since past rearrangements did not appear to correspond with the branching off of new species.

For instance, changes in ploidy are a rapid means of speciation in plants (Otto and Whitton, 2000).

In this review, we first discuss the roles of chromosomal variation in speciation in the light of recent genomic data and then discuss various mechanisms of speciation by means of genic mutation and selection.

The whole-genome doubling of natural wide hybrids to produce allopolyploids is a common event in the plant kingdom, and their formation has provided a significant means of promoting adaptation and speciation (Kearney 2005; Rapp and Wendel 2005).

The mean value and credibility intervals of speciation rates were generated after removing 2500 iterations as burn-in.

Leptidea sinapis may be used as a model system for studying speciation by means of chromosomally-based suppressed recombination mechanisms, as well as clinal speciation, a process that is theoretically possible but difficult to document.

Despite intervention by the direct hand of man that greatly exceeds the effect of any reproductive isolation by natural means, there is absolutely no indication of speciation by this method.

DNA barcoding was introduced as a method not only for the identification of known species but also for discovery of cryptic speciation by means of diagnostic DNA sequences [15], [16].

While neither these behaviours are unanimously attributed to an adaptive value, music and entrainment in various guises has been suggested to be related to group cohesion [22], the evolution of language [23], hominid speciation by means of natural selection [24], and costly signalling of mate quality in the context of sexual selection [25].

Yet, many investigators have tried to understand speciation by means of natural selection.

This perforce largely excludes evolution via allo- or autopolyploidy and also rapid speciation by means of chromosome dysploidy (Lewis, 1962).