OCEANIC VARIABILITY AND COASTAL TOPOGRAPHY SHAPE GENETIC STRUCTURE IN A LONG-DISPERSING SEA URCHIN

Ecology ◽  
2007 ◽  
Vol 88 (12) ◽  
pp. 3055-3064 ◽  
Author(s):  
Sam C. Banks ◽  
Maxine P. Piggott ◽  
Jane E. Williamson ◽  
Ulysse Bové ◽  
Neil J. Holbrook ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Sea Urchin ◽  
Oceanic Variability ◽  
Coastal Topography

Influence of the 2011 Tohoku tsunami on the genetic structure of wild sea urchin ( Mesocentrotus nudus ) populations in Sanriku, Japan

2020 ◽  
Vol 41 (2) ◽  
Author(s):  
Kenta Adachi ◽  
Takuya Suzuki ◽  
Sei‐ichi Okumura ◽  
Shohei Funayama ◽  
Shunsuke Moriyama
Keyword(s):  
Genetic Structure ◽  
Sea Urchin ◽  
2011 Tohoku Tsunami ◽  
Mesocentrotus Nudus ◽  
Tohoku Tsunami

scholarly journals Genetic structure and demographic inference of the regular sea urchin Sterechinus neumayeri (Meissner, 1900) in the Southern Ocean: The role of the last glaciation

PLoS ONE ◽  
2018 ◽  
Vol 13 (6) ◽  
pp. e0197611 ◽  
Author(s):  
Angie Díaz ◽  
Karin Gérard ◽  
Claudio González-Wevar ◽  
Claudia Maturana ◽  
Jean-Pierre Féral ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Southern Ocean ◽  
Sea Urchin ◽  
Sterechinus Neumayeri ◽  
Last Glaciation ◽  
Demographic Inference

scholarly journals The Two Sides of the Mediterranean: Population Genomics of the Black Sea Urchin Arbacia lixula (Linnaeus, 1758) in a Warming Sea

2021 ◽  
Vol 8 ◽  
Author(s):  
Carlos Carreras ◽  
Víctor Ordóñez ◽  
Àlex García-Cisneros ◽  
Owen S. Wangensteen ◽  
Creu Palacín ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Genetic Differentiation ◽  
Sea Urchin ◽  
Black Sea ◽  
Population Genomics ◽  
Environmental Data ◽  
The Black Sea ◽  
Mediterranean Populations ◽  
The Mediterranean ◽  
Arbacia Lixula

Global environmental changes may have a profound impact on ecosystems. In this context, it is crucial to gather biological and ecological information of the main species in marine communities to predict and mitigate potential effects of shifts in their distribution, abundance, and interactions. Using genotyping by sequencing (GBS), we assessed the genetic structure of a keystone species in the Mediterranean shallow littoral ecosystems, the black sea urchin Arbacia lixula. This bioengineer species can shape their communities due to its grazing activity and it is experiencing an ongoing expansion with increasing temperatures. The population genomic analyses on 5,241 loci sequenced in 240 individuals from 11 Mediterranean sampled populations revealed that all populations were diverse and showed significant departure from equilibrium. Albeit genetic differentiation was in general shallow, a significant break separated the western and eastern Mediterranean populations, a break not detected in previous studies with less resolutive markers. Notably, no clear effect of the Almería-Oran front, an important break in the Atlanto-Mediterranean transition, could be detected among the western basin populations, where only a slight differentiation of the two northernmost populations was found. Despite the generally low levels of genetic differentiation found, we identified candidate regions for local adaptation by combining different genomic analysis with environmental data. Salinity, rather than temperature, seemed to be an important driver of genetic structure in A. lixula. Overall, from a population genomics standpoint, there is ample scope for A. lixula to continue thriving and adapting in the warming Mediterranean.

scholarly journals Time and space: genetic structure of the cohorts of the common sea urchin Paracentrotus lividus in Western Mediterranean

2011 ◽  
Vol 159 (1) ◽  
pp. 187-197 ◽  
Author(s):  
I. Calderón ◽  
Lucía Pita ◽  
S. Brusciotti ◽  
C. Palacín ◽  
X. Turon
Keyword(s):  
Genetic Structure ◽  
Sea Urchin ◽  
Paracentrotus Lividus ◽  
Western Mediterranean ◽  
Time And Space ◽  
The Common

scholarly journals High levels of connectivity over large distances in the diadematid sea urchin Centrostephanus sylviae

PLoS ONE ◽  
2021 ◽  
Vol 16 (11) ◽  
pp. e0259595
Author(s):  
David Veliz ◽  
Noemi Rojas-Hernández ◽  
Pablo Fibla ◽  
Boris Dewitte ◽  
Sebastián Cornejo-Guzmán ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Sea Urchin ◽  
Marine Invertebrates ◽  
Spatial Genetic Structure ◽  
Large Population ◽  
Circulation Pattern ◽  
Nucleotide Polymorphisms ◽  
Robinson Crusoe ◽  
Isolated Populations ◽  
Juan Fernández Archipelago

Most benthic marine invertebrates with sedentary benthic adult phases have planktonic larvae that permit connectivity between geographically isolated populations. Planktonic larval duration and oceanographic processes are vital to connecting populations of species inhabiting remote and distant islands. In the present study, we analyzed the population genetic structure of the sea urchin Centrostephanus sylviae, which inhabits only the Juan Fernández Archipelago and the Desventuradas islands, separated by more than 800 km. For 92 individuals collected from Robinson Crusoe and Selkirk Islands (Juan Fernández Archipelago) and San Ambrosio Island (Desventuradas Islands), 7,067 single nucleotide polymorphisms (SNPs) were obtained. The results did not show a spatial genetic structure for C. sylviae; relative high migration rates were revealed between the islands. An analysis of the water circulation pattern in the area described a predominant northward water flow with periods of inverted flow, suggesting that larvae could move in both directions. Overall, this evidence suggests that C. sylviae comprises a single large population composed of individuals separated by more than 800 km.

scholarly journals Complex genetic structure revealed in the circum-Antarctic broadcast spawning sea urchin Sterechinus neumayeri

2018 ◽  
Vol 601 ◽  
pp. 153-166 ◽  
Author(s):  
KJ Miller ◽  
HP Baird ◽  
J van Oosterom ◽  
J Mondon ◽  
CK King
Keyword(s):  
Genetic Structure ◽  
Sea Urchin ◽  
Broadcast Spawning ◽  
Sterechinus Neumayeri
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