Variation in plastic responses of a globally distributed picoplankton species to ocean acidification

2012 ◽  
Vol 3 (3) ◽  
pp. 298-302 ◽  
Author(s):  
Elisa Schaum ◽  
Björn Rost ◽  
Andrew J. Millar ◽  
Sinéad Collins
Keyword(s):  
Ocean Acidification ◽  
Plastic Responses ◽  
Globally Distributed

scholarly journals Plasticity predicts evolution in a marine alga

2014 ◽  
Vol 281 (1793) ◽  
pp. 20141486 ◽  
Author(s):  
C. Elisa Schaum ◽  
Sinéad Collins
Keyword(s):  
Cell Division ◽  
Mitochondrial Potential ◽  
Daughter Cells ◽  
Link Type ◽  
Marine Microbe ◽  
Variable Environments ◽  
Evolutionary Response ◽  
The Face ◽  
Plastic Responses ◽  
Globally Distributed

Under global change, populations have four possible responses: ‘migrate, acclimate, adapt or die’ (Gienapp et al . 2008 Climate change and evolution: disentangling environmental and genetic response. Mol. Ecol. 17 , 167–178. ( doi:10.1111/j.1365-294X.2007.03413.x )). The challenge is to predict how much migration, acclimatization or adaptation populations are capable of. We have previously shown that populations from more variable environments are more plastic (Schaum et al . 2013 Variation in plastic responses of a globally distributed picoplankton species to ocean acidification. Nature 3 , 298–230. ( doi:10.1038/nclimate1774 )), and here we use experimental evolution with a marine microbe to learn that plastic responses predict the extent of adaptation in the face of elevated partial pressure of CO 2 (pCO 2 ). Specifically, plastic populations evolve more, and plastic responses in traits other than growth can predict changes in growth in a marine microbe. The relationship between plasticity and evolution is strongest when populations evolve in fluctuating environments, which favour the evolution and maintenance of plasticity. Strikingly, plasticity predicts the extent, but not direction of phenotypic evolution. The plastic response to elevated pCO 2 in green algae is to increase cell division rates, but the evolutionary response here is to decrease cell division rates over 400 generations until cells are dividing at the same rate their ancestors did in ambient CO 2 . Slow-growing cells have higher mitochondrial potential and withstand further environmental change better than faster growing cells. Based on this, we hypothesize that slow growth is adaptive under CO 2 enrichment when associated with the production of higher quality daughter cells.

scholarly journals Magnitude and predictability of pH fluctuations shape plastic responses to ocean acidification

2020 ◽  
Author(s):  
Mark Bitter ◽  
Lydia Kapsenberg ◽  
Katherine Silliman ◽  
Jean-Pierre Gattuso ◽  
Catherine A. Pfister
Keyword(s):  
Ocean Acidification ◽  
Plastic Responses ◽  
Ph Fluctuations

scholarly journals Molecular basis of ocean acidification sensitivity and adaptation in Mytilus galloprovincialis

2021 ◽  
Author(s):  
Lydia Kapsenberg ◽  
Mark Christopher Bitter ◽  
Angelica Miglioli ◽  
Carles Pelejero ◽  
Jean-Pierre Gattuso ◽  
...  
Keyword(s):  
Ocean Acidification ◽  
Gene Annotation ◽  
Low Ph ◽  
Ph Sensitive ◽  
Cellular Stress Response ◽  
Abnormal Development ◽  
Rapid Adaptation ◽  
Main Driver ◽  
Globally Distributed

One challenge in global change biology is to identify the mechanisms underpinning physiological sensitivities to environmental change and to predict their potential to adapt to future conditions. Using ocean acidification as the representative stressor, molecular pathways associated with abnormal larval development of a globally distributed marine mussel are identified. The targeted developmental stage was the trochophore stage, which is, for a few hours, pH sensitive and is the main driver of developmental success. RNA sequencing and in situ RNA hybridization were used to identify processes associated with abnormal development, and DNA sequencing was used to identify which processes evolve when larvae are exposed to low pH for the full duration of their larval stage. Trochophores exposed to low pH exhibited 43 differentially expressed genes. Thirteen genes, none of which have previously been identified in mussel trochophores, including three unknown genes, were expressed in the shell field. Gene annotation and in situ hybridization point to two core processes associated with the response to low pH: development of the trochophore shell field and the cellular stress response. Encompassing both of these processes, five genes demonstrated changes in allele frequency that are indicative of rapid adaptation. Thus, genes underpinning the most pH-sensitive developmental processes also exhibit scope to adapt via genetic variation currently maintained in the mussel population. These results provide evidence that protecting existing genetic diversity is a critical management action to maximize the potential for rapid adaptation under a changing environment.

scholarly journals Plastic responses of bryozoans to ocean acidification

2017 ◽  
Vol 220 (23) ◽  
pp. 4399-4409 ◽  
Author(s):  
Daniel S. Swezey ◽  
Jessica R. Bean ◽  
Tessa M. Hill ◽  
Brian Gaylord ◽  
Aaron T. Ninokawa ◽  
...  
Keyword(s):  
Ocean Acidification ◽  
Plastic Responses

Effects of ocean acidification on larval development and early post-hatching traits in Concholepas concholepas (loco)

2014 ◽  
Vol 514 ◽  
pp. 87-103 ◽  
Author(s):  
PH Manríquez ◽  
ME Jara ◽  
ML Mardones ◽  
R Torres ◽  
NA Lagos ◽  
...  
Keyword(s):  
Ocean Acidification ◽  
Larval Development ◽  
Concholepas Concholepas
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