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Zhang L, Zhao ZW, Ma LX, Dong YW. Genome-wide sequencing reveals geographical variations in the thermal adaptation of an aquaculture species with frequent seedling introductions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 927:172010. [PMID: 38575020 DOI: 10.1016/j.scitotenv.2024.172010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 03/20/2024] [Accepted: 03/25/2024] [Indexed: 04/06/2024]
Abstract
Climate change and human activity are essential factors affecting marine biodiversity and aquaculture, and understanding the impacts of human activities on the genetic structure to increasing high temperatures is crucial for sustainable aquaculture and marine biodiversity conservation. As a commercially important bivalve, the Manila clam Ruditapes philippinarum is widely distributed along the coast of China, and it has been frequently introduced from Fujian Province, China, to other regions for aquaculture. In this study, we collected four populations of Manila clams from different areas to evaluate their thermal tolerance by measuring cardiac performance and genetic variations using whole-genome resequencing. The upper thermal limits of the clams showed high variations within and among populations. Different populations displayed divergent genetic compositions, and the admixed population was partly derived from the Zhangzhou population in Fujian Province, implying a complex genomic landscape under the influence of local genetic sources and human introductions. Multiple single nucleotide polymorphisms (SNPs) were associated with the cardiac functional traits, and some of these SNPs can affect the codon usage and the structural stability of the resulting protein. This study shed light on the importance of establishing long-term ecological and genetic monitoring programs at the local level to enhance resilience to future climate change.
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Affiliation(s)
- Liang Zhang
- Ministry Key Laboratory of Mariculture, Fisheries College, Ocean University of China, Qingdao, 266001, China
| | - Zhan-Wei Zhao
- Ministry Key Laboratory of Mariculture, Fisheries College, Ocean University of China, Qingdao, 266001, China
| | - Lin-Xuan Ma
- Ministry Key Laboratory of Mariculture, Fisheries College, Ocean University of China, Qingdao, 266001, China
| | - Yun-Wei Dong
- Ministry Key Laboratory of Mariculture, Fisheries College, Ocean University of China, Qingdao, 266001, China.
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Dong YW. Roles of multi-level temperature-adaptive responses and microhabitat variation in establishing distributions of intertidal species. J Exp Biol 2023; 226:jeb245745. [PMID: 37909420 DOI: 10.1242/jeb.245745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
How intertidal species survive their harsh environment and how best to evaluate and forecast range shifts in species distribution are two important and closely related questions for intertidal ecologists and global change biologists. Adaptive variation in responses of organisms to environmental change across all levels of biological organization - from behavior to molecular systems - is of key importance in setting distribution patterns, yet studies often neglect the interactions of diverse types of biological variation (e.g. differences in thermal optima owing to genetic and acclimation-induced effects) with environmental variation, notably at the scale of microhabitats. Intertidal species have to cope with extreme and frequently changing thermal stress, and have shown high variation in thermal sensitivities and adaptive responses at different levels of biological organization. Here, I review the physiological and biochemical adaptations of intertidal species to environmental temperature on multiple spatial and temporal scales. With fine-scale datasets for the thermal limits of individuals and for environmental temperature variation at the microhabitat scale, we can map the thermal sensitivity for each individual in different microhabitats, and then scale up the thermal sensitivity analysis to the population level and, finally, to the species level by incorporating physiological traits into species distribution models. These more refined mechanistic models that include consideration of physiological variations have higher predictive power than models that neglect these variations, and they will be crucial to answering the questions posed above concerning adaptive mechanisms and the roles they play in governing distribution patterns in a rapidly changing world.
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Affiliation(s)
- Yun-Wei Dong
- Ministry Key Laboratory of Mariculture, Fisheries College, Ocean University of China, Qingdao 266001, China
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Zhang L, Zhang YY, Ma LX, Dong YW. Evaluation of species thermal sensitivity with individual-based physiological performance. MARINE ENVIRONMENTAL RESEARCH 2023; 192:106212. [PMID: 37812948 DOI: 10.1016/j.marenvres.2023.106212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 09/22/2023] [Accepted: 09/26/2023] [Indexed: 10/11/2023]
Abstract
Ignoring intraspecific variations can prevent us from accurately assessing species' thermal sensitivity to global warming. Individual-based physiological performance provides a feasible solution to depict species' thermal sensitivity using a bottom-up approach. We measured the cardiac performance of intertidal bivalves (1159 individuals from multiple populations of six bivalves), determined the upper thermal limit of each individual, calculated the proportions of individuals suffering sublethal/lethal heat stress, and mapped sensitive regions to high temperatures. Results showed that high inter-individual variations of physiological performance existed in levels of populations and species, and species' thermal sensitivity was positively related to the intraspecific variations of heat tolerance. This bottom-up approach scaled up from individual, population to species emphasizes the importance of individual-based physiology performance in assessing thermal sensitivity across different hierarchical levels and enables better evaluating and forecasting of species responses to global warming.
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Affiliation(s)
- Liang Zhang
- Ministry Key Laboratory of Mariculture, Fisheries College, Ocean University of China, Qingdao, 266001, China
| | - Yu-Yang Zhang
- Ministry Key Laboratory of Mariculture, Fisheries College, Ocean University of China, Qingdao, 266001, China
| | - Lin-Xuan Ma
- Ministry Key Laboratory of Mariculture, Fisheries College, Ocean University of China, Qingdao, 266001, China
| | - Yun-Wei Dong
- Ministry Key Laboratory of Mariculture, Fisheries College, Ocean University of China, Qingdao, 266001, China.
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Kefford BJ, Ghalambor CK, Dewenter B, Poff NL, Hughes J, Reich J, Thompson R. Acute, diel, and annual temperature variability and the thermal biology of ectotherms. GLOBAL CHANGE BIOLOGY 2022; 28:6872-6888. [PMID: 36177681 PMCID: PMC9828456 DOI: 10.1111/gcb.16453] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 08/29/2022] [Indexed: 06/16/2023]
Abstract
Global warming is increasing mean temperatures and altering temperature variability at multiple temporal scales. To better understand the consequences of changes in thermal variability for ectotherms it is necessary to consider thermal variation at different time scales (i.e., acute, diel, and annual) and the responses of organisms within and across generations. Thermodynamics constrain acute responses to temperature, but within these constraints and over longer time periods, organisms have the scope to adaptively acclimate or evolve. Yet, hypotheses and predictions about responses to future warming tend not to explicitly consider the temporal scale at which temperature varies. Here, focusing on multicellular ectothermic animals, we argue that consideration of multiple processes and constraints associated with various timescales is necessary to better understand how altered thermal variability because of climate change will affect ectotherms.
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Affiliation(s)
- Ben J. Kefford
- Centre for Applied Water Science, Institute for Applied EcologyUniversity of CanberraCanberraAustralian Capital TerritoryAustralia
| | - Cameron K. Ghalambor
- Department of Biology and Graduate Degree Program in EcologyColorado State UniversityFort CollinsColoradoUSA
- Department of Biology, Centre for Biodiversity Dynamics (CBD)Norwegian University of Science and Technology (NTNU)TrondheimNorway
| | - Beatrice Dewenter
- Centre for Applied Water Science, Institute for Applied EcologyUniversity of CanberraCanberraAustralian Capital TerritoryAustralia
| | - N. LeRoy Poff
- Centre for Applied Water Science, Institute for Applied EcologyUniversity of CanberraCanberraAustralian Capital TerritoryAustralia
- Department of Biology and Graduate Degree Program in EcologyColorado State UniversityFort CollinsColoradoUSA
| | - Jane Hughes
- Australian Rivers InstituteGriffith UniversityNathanQueenslandAustralia
| | - Jollene Reich
- Centre for Applied Water Science, Institute for Applied EcologyUniversity of CanberraCanberraAustralian Capital TerritoryAustralia
| | - Ross Thompson
- Centre for Applied Water Science, Institute for Applied EcologyUniversity of CanberraCanberraAustralian Capital TerritoryAustralia
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Leuchtenberger SG, Daleo M, Gullickson P, Delgado A, Lo C, Nishizaki MT. The effects of temperature and pH on the reproductive ecology of sand dollars and sea urchins: Impacts on sperm swimming and fertilization. PLoS One 2022; 17:e0276134. [PMID: 36454769 PMCID: PMC9714736 DOI: 10.1371/journal.pone.0276134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 09/29/2022] [Indexed: 12/02/2022] Open
Abstract
In an era of climate change, impacts on the marine environment include warming and ocean acidification. These effects can be amplified in shallow coastal regions where conditions often fluctuate widely. This type of environmental variation is potentially important for many nearshore species that are broadcast spawners, releasing eggs and sperm into the water column for fertilization. We conducted two experiments to investigate: 1) the impact of water temperature on sperm swimming characteristics and fertilization rate in sand dollars (Dendraster excentricus; temperatures 8-38°C) and sea urchins (Mesocentrotus franciscanus; temperatures 8-28°C) and; 2) the combined effects of multiple stressors (water temperature and pH) on these traits in sand dollars. We quantify thermal performance curves showing that sand dollar fertilization rates, sperm swimming velocities, and sperm motility display remarkably wide thermal breadths relative to red urchins, perhaps reflecting the wider range of water temperatures experienced by sand dollars at our field sites. For sand dollars, both temperature (8, 16, 24°C) and pH (7.1, 7.5, 7.9) affected fertilization but only temperature influenced sperm swimming velocity and motility. Although sperm velocities and fertilization were positively correlated, our fertilization kinetics model dramatically overestimated measured rates and this discrepancy was most pronounced under extreme temperature and pH conditions. Our results suggest that environmental stressors like temperature and pH likely impair aspects of the reproductive process beyond simple sperm swimming behavior.
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Affiliation(s)
- Sara Grace Leuchtenberger
- Biology Department, Carleton College, Northfield, MN, United States of America
- Friday Harbor Laboratories, Friday Harbor, WA, United States of America
| | - Maris Daleo
- Biology Department, Carleton College, Northfield, MN, United States of America
- Friday Harbor Laboratories, Friday Harbor, WA, United States of America
| | - Peter Gullickson
- Biology Department, Carleton College, Northfield, MN, United States of America
| | - Andi Delgado
- Biology Department, Carleton College, Northfield, MN, United States of America
- Friday Harbor Laboratories, Friday Harbor, WA, United States of America
| | - Carly Lo
- Biology Department, Carleton College, Northfield, MN, United States of America
| | - Michael T. Nishizaki
- Biology Department, Carleton College, Northfield, MN, United States of America
- Friday Harbor Laboratories, Friday Harbor, WA, United States of America
- * E-mail:
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