He adds that, in palaeontology, «
phylogenies change from week to week».
Not exact matches
«Another approach is to date
phylogenies by looking at a «clock» of molecular
changes that accumulate in the genetic code.
Fred Grine, a palaeontologist at the State University of New York in Stony Brook, says, «basically what they're looking at comes down to nothing more than biogeography» and that «if you started finding catarrhines in South America, they'd also
change the
phylogeny».
Mapping the
changes in copy number to the
phylogeny of these Y chromosomes previously established by the Project identified at least 20 mutational events, and investigation of flanking paralogous sequence variants showed that the mutations involved flanking sequences in 18 of these, and could extend over > 30 kb of DNA.
As species & serovar designations are continuously refined /
changed & because serovar isolates do not directly correlate to clinical severity or form of disease, memorizing specifics of
phylogeny is generally not necessary.