Number of the records: 1

What's in a name? How organelles of endosymbiotic origin can be distinguished from endosymbionts

SYSNO ASEP	0521054
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	What's in a name? How organelles of endosymbiotic origin can be distinguished from endosymbionts
Author(s)	Gruber, Ansgar (BC-A)_{RID, ORCID}
Number of authors	1
Source Title	Microbial cell. - : Shared Science Publishers Roč. 6, č. 2 (2019), s. 123-133
Number of pages	11 s.
Publication form	Print - P
Language	eng - English
Country	AT - Austria
Keywords	horizontal transfer ; genus symbiodinium ; evolution ; genomes ; symbiosis ; protein ; biogeography ; specificity ; acquisition ; difference ; organelle ; evolution ; endocytobiosis ; symbiogenesis ; chloroplast ; eukaryogenesis ; speciation
Subject RIV	CE - Biochemistry
OECD category	Biochemistry and molecular biology
R&D Projects	GBP501/12/G055 GA ČR - Czech Science Foundation (CSF)
Method of publishing	Open access
Institutional support	BC-A - RVO:60077344
UT WOS	000457530900002
EID SCOPUS	85062958583
DOI	10.15698/mic2019.02.668
Annotation	Mitochondria and plastids evolved from free-living bacteria, but are now considered integral parts of the eukaryotic species in which they live. Therefore, they are implicitly called by the same eukaryotic species name. Historically, mitochondria and plastids were known as 'organelles', even before their bacterial origin became fully established. However, since organelle evolution by endosymbiosis has become an established theory in biology, more and more endosymbiotic systems have been discovered that show various levels of host/symbiont integration. In this context, the distinction between 'host/symbiont' and 'eukaryote/organelle' systems is currently unclear. The criteria that are commonly considered are genetic integration (via gene transfer from the endosymbiont to the nucleus), cellular integration (synchronization of the cell cycles), and metabolic integration (the mutual dependency of the metabolisms). Here, I suggest that these criteria should be evaluated according to the resulting coupling of genetic recombination between individuals and congruence of effective population sizes, which determines if independent speciation is possible for either of the partners. I would like to call this aspect of integration 'sexual symbiont integration'. If the partners lose their independence in speciation, I think that they should be considered one species. The partner who maintains its genetic recombination mechanisms and life cycle should then be the name giving 'host', the other one would be the organelle. Distinguishing between organelles and symbionts according to their sexual symbiont integration is independent of any particular mechanism or structural property of the endosymbiont/host system under investigation.
Workplace	Biology Centre (since 2006)
Contact	Dana Hypšová, eje@eje.cz, Tel.: 387 775 214
Year of Publishing	2020
Electronic address	http://microbialcell.com/wordpress/wp-content/uploads/2019/01/2019A-Gruber-Microbial-Cell.pdf

Number of the records: 1