scholarly journals Separate the wheat from the chaff: genomic scan for local adaptation in the red coral Corallium rubrum

2021 ◽  
Vol 1 ◽  
pp. 1-None
Author(s):  
M. Pratlong ◽  
A. Haguenauer ◽  
K. Brener ◽  
G. Mitta ◽  
E. Toulza ◽  
...  
Keyword(s):  
Local Adaptation ◽  
Corallium Rubrum ◽  
Red Coral

scholarly journals Separate the wheat from the chaff: genomic scan for local adaptation in the red coralCorallium rubrum

2018 ◽  
Author(s):  
M. Pratlong ◽  
A. Haguenauer ◽  
K. Brener ◽  
G. Mitta ◽  
E. Toulza ◽  
...  
Keyword(s):  
Local Adaptation ◽  
Environmental Gradient ◽  
Environmental Gradients ◽  
High Rate ◽  
Corallium Rubrum ◽  
Red Coral ◽  
Geographical Regions ◽  
Adaptive Processes ◽  
Tests Of Association ◽  
Candidate Loci

ABSTRACTGenomic data allow an in-depth and renewed study of local adaptation. The red coral (Corallium rubrum, Cnidaria) is a highly genetically structured species and a promising model for the study of adaptive processes along an environmental gradient. Here, we used RAD-Sequencing in order to study the vertical genetic structure of this species and to search for signals of local adaptation to depth and thermal regime in the red coral. Previous studies have shown different thermotolerance levels according to depth in this species which could correspond to genetic or environmental differences. We designed a sampling scheme with six pairs of ‘shallow vs deep’ populations distributed in three geographical regions as replicates. Our results showed significant differentiation among locations and among sites separated by around 20 m depth. The tests of association between genetics and environment allowed the identification of candidate loci under selection but with a potentially high rate of false positive. We discuss the methodological obstacles and biases encountered for the detection of selected loci in such a strongly genetically structured species. On this basis, we also discuss the significance of the candidate loci for local adaptation detected in each geographical region and the evolution of red coral populations along environmental gradients.A colony of red coral,Corallium rubrum, near Marseille. Photo: F. Zuberer / OSU Pythéas / CNRS

scholarly journals The red coral (Corallium rubrum) transcriptome: a new resource for population genetics and local adaptation studies

2015 ◽  
Vol 15 (5) ◽  
pp. 1205-1215 ◽  
Author(s):  
M. Pratlong ◽  
A. Haguenauer ◽  
O. Chabrol ◽  
C. Klopp ◽  
P. Pontarotti ◽  
...  
Keyword(s):  
Population Genetics ◽  
Local Adaptation ◽  
Adaptation Studies ◽  
Corallium Rubrum ◽  
Red Coral

Colonization of plastic debris by the long-lived precious red coral Corallium rubrum: New insights on the “plastic benefits” paradox

2021 ◽  
Vol 165 ◽  
pp. 112104
Author(s):  
Laura Carugati ◽  
Lorenzo Bramanti ◽  
Bruna Giordano ◽  
Lucia Pittura ◽  
Rita Cannas ◽  
...  
Keyword(s):  
Plastic Debris ◽  
Corallium Rubrum ◽  
Red Coral

scholarly journals Spirochaetes dominate the microbial community associated with the red coral Corallium rubrum on a broad geographic scale

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Jeroen A. J. M. van de Water ◽  
Rémy Melkonian ◽  
Howard Junca ◽  
Christian R. Voolstra ◽  
Stéphanie Reynaud ◽  
...  
Keyword(s):  
Microbial Community ◽  
Geographic Scale ◽  
Corallium Rubrum ◽  
Red Coral

scholarly journals 3D Photogrammetry Modeling Highlights Efficient Reserve Effect Apparition After 5 Years and Stillness After 40 for Red Coral (Corallium rubrum) Conservation in French MPAs

2021 ◽  
Vol 8 ◽  
Author(s):  
Justine Richaume ◽  
Adrien Cheminée ◽  
Pierre Drap ◽  
Patrick Bonhomme ◽  
Frederic Cadene ◽  
...  
Keyword(s):  
National Park ◽  
Local Level ◽  
Cost Effective ◽  
Maximum Height ◽  
Time Step ◽  
Mechanical Destruction ◽  
Corallium Rubrum ◽  
Red Coral ◽  
Significant Difference ◽  
Precautionary Measures

Imaging the marine environment is more and more useful to understand relationships between species, as well as natural processes. Developing photogrammetry allowed the use of 3D measuring to study populations dynamics of sessile organisms at various scales: from colony to population. This study focuses on red coral (Corallium rubrum), as known as precious coral. Metrics measured at a colony scale (e.g., maximum height, diameter and number of branches) allowed population understanding and a comparison between an old (Cerbère-Banyuls reserve) vs. a new (Calanques National Park) MPA. Our results suggested a 5-year time step allows the appearance of a significant difference between populations inside vs. outside the Calanques National Park no-take zones. Red coral colonies were taller and had more branches inside no-take zones. A significant difference was still observable for the populations inside the Cerbère-Banyuls reserve after 40 years of protection, reflecting the sustainability and effectiveness of precautionary measures set by the reserve. The impacts at the local level (mechanical destruction) and those presumed to occur via global change (climatic variations) underline the need to develop strategies both to follow the evolutions of red coral populations but also to understand their resilience. Photogrammetry induced modeling is a time and cost effective as well as non-invasive method which could be used to understand population dynamics at a seascape scale on coralligenous reefs.

Survey of deep-dwelling red coral (Corallium rubrum) populations at Cap de Creus (NW Mediterranean)

2008 ◽  
Vol 154 (3) ◽  
pp. 533-545 ◽  
Author(s):  
Sergio Rossi ◽  
Georgios Tsounis ◽  
Covadonga Orejas ◽  
Tirma Padrón ◽  
Josep-Maria Gili ◽  
...  
Keyword(s):  
Corallium Rubrum ◽  
Red Coral ◽  
Nw Mediterranean

scholarly journals Evidence for a genetic sex determination in Cnidaria, the Mediterranean red coral ( Corallium rubrum )

2017 ◽  
Vol 4 (3) ◽  
pp. 160880 ◽  
Author(s):  
M. Pratlong ◽  
A. Haguenauer ◽  
S. Chenesseau ◽  
K.  Brener ◽  
G. Mitta ◽  
...  
Keyword(s):  
Sex Determination ◽  
Strong Association ◽  
Nucleotide Polymorphisms ◽  
Single Nucleotide ◽  
Evolutionary Forces ◽  
Corallium Rubrum ◽  
Red Coral ◽  
Determination System ◽  
Sex Determination System ◽  
Male Specific

Sexual reproduction is widespread among eukaryotes, and the sex-determining processes vary greatly among species. While genetic sex determination (GSD) has been intensively described in bilaterian species, no example has yet been recorded among non-bilaterians. However, the quasi-ubiquitous repartition of GSD among multicellular species suggests that similar evolutionary forces can promote this system, and that these forces could occur also in non-bilaterians. Studying sex determination across the range of Metazoan diversity is indeed important to understand better the evolution of this mechanism and its lability. We tested the existence of sex-linked genes in the gonochoric red coral ( Corallium rubrum , Cnidaria) using restriction site-associated DNA sequencing. We analysed 27 461 single nucleotide polymorphisms (SNPs) in 354 individuals from 12 populations including 53 that were morphologically sexed. We found a strong association between the allele frequencies of 472 SNPs and the sex of individuals, suggesting an XX/XY sex-determination system. This result was confirmed by the identification of 435 male-specific loci. An independent test confirmed that the amplification of these loci enabled us to identify males with absolute certainty. This is the first demonstration of a GSD system among non-bilaterian species and a new example of its convergence in multicellular eukaryotes.

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