@article {benites_evolutionary_2021,
	title = {Evolutionary Genomics of Sex-Related Chromosomes at the Base of the Green Lineage},
	journal = {Genome Biology and Evolution},
	volume = {13},
	number = {10},
	year = {2021},
	pages = {evab216},
	abstract = {Although sex is now accepted as a ubiquitous and ancestral feature of eukaryotes, direct observation of sex is still lacking in most unicellular eukaryotic lineages. Evidence of sex is frequently indirect and inferred from the identification of genes involved in meiosis from whole genome data and/or the detection of recombination signatures from genetic diversity in natural populations. In haploid unicellular eukaryotes, sex-related chromosomes are named mating-type (MTs) chromosomes and generally carry large genomic regions where recombination is suppressed. These regions have been characterized in Fungi and Chlorophyta and determine gamete compatibility and fusion. Two candidate MT{\th} and MT{\`A} alleles, spanning 450{\textendash}650 kb, have recently been described in Ostreococcus tauri, a marine phytoplanktonic alga from the Mamiellophyceae class, an early diverging branch in the green lineage. Here, we investigate the architecture and evolution of these candidate MT{\th} and MT{\`A} alleles. We analyzed the phylogenetic profile and GC content of MT gene families in eight different genomes whose divergence has been previously estimated at up to 640 Myr, and found evidence that the divergence of the two MT alleles predates speciation in the Ostreococcus genus. Phylogenetic profiles of MT transspecific polymorphisms in gametologs disclosed candidate MTs in two additional species, and possibly a third. These Mamiellales MT candidates are likely to be the oldest mating-type loci described to date, which makes them fascinating models to investigate the evolutionary mechanisms of haploid sex determination in eukaryotes.},
	keywords = {RCC1105, RCC1115, RCC2590, RCC299, rcc3401, RCC4221, RCC809, RCC834},
	issn = {1759-6653},
	doi = {10.1093/gbe/evab216},
	url = {https://academic.oup.com/gbe/article/doi/10.1093/gbe/evab216/6380139},
	author = {Benites, Luis Felipe and Bucchini, Fran{\c c}ois and Sanchez-Brosseau, Sophie and Grimsley, Nigel and Vandepoele, Klaas and Piganeau, Gwenael},
	editor = {Wolfe, Kenneth}
}
@article {Yau2020,
	title = {Virus-host coexistence in phytoplankton through the genomic lens},
	journal = {Science Advances},
	volume = {6},
	number = {14},
	year = {2020},
	note = {tex.mendeley-tags: RCC2590,RCC2596},
	month = {apr},
	pages = {eaay2587},
	abstract = {Virus-microbe interactions in the ocean are commonly described by {\textquotedblleft}boom and bust{\textquotedblright} dynamics, whereby a numerically dominant microorganism is lysed and replaced by a virus-resistant one. Here, we isolated a microalga strain and its infective dsDNA virus whose dynamics are characterized instead by parallel growth of both the microalga and the virus. Experimental evolution of clonal lines revealed that this viral production originates from the lysis of a minority of virus-susceptible cells, which are regenerated from resistant cells. Whole-genome sequencing demonstrated that this resistant-susceptible switch involved a large deletion on one chromosome. Mathematical modeling explained how the switch maintains stable microalga-virus population dynamics consistent with their observed growth pattern. Comparative genomics confirmed an ancient origin of this {\textquotedblleft}accordion{\textquotedblright} chromosome despite a lack of sequence conservation. Together, our results show how dynamic genomic rearrangements may account for a previously overlooked coexistence mechanism in microalgae-virus interactions.},
	keywords = {RCC2590, RCC2596},
	issn = {2375-2548},
	doi = {10.1126/sciadv.aay2587},
	url = {https://advances.sciencemag.org/lookup/doi/10.1126/sciadv.aay2587},
	author = {Yau, Sheree and Krasovec, Marc and Benites, L. Felipe and Rombauts, Stephane and Groussin, Mathieu and Vancaester, Emmelien and Aury, Jean-Marc and Derelle, Evelyne and Desdevises, Yves and Escande, Marie-Line and Grimsley, Nigel and Guy, Julie and Moreau, Herv{\'e} and Sanchez-Brosseau, Sophie and Van de Peer, Yves and Vandepoele, Klaas and Gourbi{\`e}re, S{\'e}bastien and Piganeau, Gwenael}
}
@article {Krasovec2019,
	title = {First estimation of the spontaneous mutation rate in Diatoms},
	journal = {Genome Biology and Evolution},
	volume = {1},
	year = {2019},
	note = {tex.mendeley-tags: RCC2967},
	pages = {1{\textendash}23},
	keywords = {diatoms, Mutation accumulation, mutation rate in phaeodactylum, mutation spectrum, phaeodactylum, RCC2967, running title, spontaneous mutation rate, tricornutum},
	issn = {1759-6653},
	doi = {10.1093/gbe/evz130},
	url = {https://academic.oup.com/gbe/advance-article/doi/10.1093/gbe/evz130/5520952},
	author = {Krasovec, Marc and Sanchez-Brosseau, Sophie and Piganeau, Gwenael},
	editor = {Baer, Charles}
}
