We therefore favour the more conservative proposal by Coleman [ 25, 26] which refers to the presence of at least one CBC between two organisms in the conserved regions of ITS2 predicting a failure to sexually cross, i.e. these organisms represent two different species.
Thus, we extended our analysis and compared sequences at a lower limit of 50 aa sequence overlap, which would cover short domains such as the FHA-domain in kinesin-3 (57 aa, PFAM) or the mentioned CAP-Glu domain in Clip1 (65 aa, PFAM) and applied the same criterion as before (≥ 20% identity between two organisms in the overlapping region and 10% less in the third partner).
We consider the projected network of organisms, in which we set a link between two organisms if at least one COG is present in the genome of both organisms.
All those cases need to be integrated in the study of the conservation of function between two organisms and, in our experience, none of the current methods of ortholog mapping is good at all of them.
An interaction between two organisms living together in more or less intimate association.
A relationship between two organisms that live in intimate contact with each other; includes mutualism (both organisms benefit, they rely on each other for survival), parasitism (one organism benefits at its host's expense) and commensalism (one partner benefits and the other is neither benefitted nor harmed); symbiotic- adj.
Although in principle horizontal gene transfer, the movement of genes among different genomes, could obscure the phylogenetic pattern, in practice the difference in gene content between two organisms closely tracks the differences in marker genes such as the 16S rRNA gene (Zaneveld et al. 2010; Konstantinidis and Tiedje 2005).
Mutualism is based on a mutually beneficial interaction between two organisms and is ubiquitous in nature [1], [2], [3], [4], [5], [6].
HexII, added by WaaO in E. coli and WaaI in S. typhimurium, differs between the two organisms; in S. typhimurium, a galactose is added instead of glucose.
We investigated the growth dependencies between the two organisms in the integrated model using Pareto optimality analysis,, a bi-objective linear programming approach to analyze the trade-off between two reactions i and j.
Controlled oxygen transfer is used to induce a symbiosis between the two organisms in which the yeast removes oxygen, protecting C. phytofermentans, in return for soluble carbohydrates liberated from cellulose.
