Because alleles carry neighboring DNA with them as they circulate, the number of singletons on nearby DNA can be used as a rough molecular clock, indicating how quickly that allele has changed in frequency. .
In fact, Bayesian divergence dating analyses using a relaxed molecular clock indicate that it is one of the earliest diverging lineages of the entire North American clade (Figs. 1b,c).
Given nearly neutral rates of evolution, the degree of sequence divergence forms a "molecular clock" indicating the timing of the various events on mouse Yq.
A new molecular clock indicates that molluscs had a terminal Precambrian origin with rapid divergence of all eight extant classes in the Cambrian.
Our molecular clock indicates a potential time frame of only around 20 40 million years from the first shelled molluscs (ca. 560 540 Ma) to the presence of differentiated variopod, dorsoconch, gastropod, bivalve, and serialian stem lineages (ca. 520 Ma).
The molecular clock indicates that the age of divergence of the Central and the edwardsianus lineages was about 4.8 (1.5-8.7 1.5-8.7hich, together with phylogeographic and phenotypic evidence, strongly suggest that these two lineages reflect independent evolutionary units.
Strict and semi-parametric molecular clocks indicated that the deepest divergence in Cucumis may date back to 48 45 my and that the split between the C. melo lineage and its Australian/Asian sister clade is only slightly younger.
Various molecular clocks indicate that angiosperms and Eudicots have a significantly earlier origin than the earliest fossil record indicates31,32,33.
Molecular clocks indicate that the deepest divergences in Cucumis, including the split between C. melo and its Australian/Asian sister clade, go back to the mid-Eocene.
Relaxed molecular clock analyses indicated species radiations of this clade concentrated at approximately 1.9 7.6 MYA.
