Monogamy and high relatedness were first proposed to be critical in evolutionary transitions in social insects from cooperative breeding with totipotent individuals, to eusocial systems with morphological queen and worker castes [ 13, 14].
From my perspective, the three most important processes (only two of which are evolutionary transitions) in early evolution are i) the origin of life, ii) prokaryotic evolution, and iii) the prokaryote-to-eukaryote transition.
Although humans aren't completely monogamous, "the emergence of pair-bonding in humans was a major evolutionary transition, which dramatically altered the evolutionary trajectory of our species," says Sergey Gavrilets, an evolutionary biologist at the University of Tennessee, Knoxville.
Digital cameras and software are breaking down this barrier, but the organic qualities of film are at risk of being lost in that evolutionary transition.
We reasoned that S. flava genes that respond transcriptionally to feeding on glucosinolate-bearing plant tissues were likely to be involved in the evolutionary transition to herbivory.
Our DE analysis revealed new candidate genes the may be involved in the evolutionary transition in medusae loss or re-evolution that have not been previously characterized in hydrozoa.
In the PI clade there appears to have been a single evolutionary transition to parthenogenesis; among the PII Panagrolaimus strains the phylogeny suggests a single transition to hermaphroditism.
A number of changes and tinkering inventions were necessary in the evolutionary transition between prokaryotic and eukaryotic cells, which finally made possible the appearance of genuine multicellular organisms.
Padian (2008) suggests depicting these various lines of evidence, particularly the ones that are important in major evolutionary transitions, in a single diagram, called an "evogram" (Fig. 3), to help students to understand that evolutionary research is conducted in an integrative way and in a way that relies on testing independent lines of evidence against each other to demonstrate concordance.
We are in transition period".
This separation was preceded by reorganization of the molecular signaling centers and Shh pathway-related proteins are good candidates for being implicated in these evolutionary transitions [ 83].
