Environment‐dependent inbreeding depression: its ecological and evolutionary significance

Environment‐dependent inbreeding depression: its ecological and evolutionary significance. Cheptou, P. & Donohue, K. New Phytologist, 189(2):395–407, January, 2011.

Paper doi abstract bibtex

Summary Inbreeding depression is a major evolutionary and ecological force that influences population dynamics and the evolution of inbreeding‐avoidance traits such as mating systems and dispersal. There is now compelling evidence that inbreeding depression is environment‐dependent. Here, we discuss ecological and evolutionary consequences of environment‐dependent inbreeding depression. The environmental dependence of inbreeding depression may be caused by environment‐dependent phenotypic expression, environment‐dependent dominance, and environment‐dependent natural selection. The existence of environment‐dependent inbreeding depression challenges classical models of inbreeding as caused by unconditionally deleterious alleles, and suggests that balancing selection may shape inbreeding depression in natural populations; loci associated with inbreeding depression in some environments may even contribute to adaptation to others. Environment‐dependent inbreeding depression also has important, often neglected, ecological and evolutionary consequences: it can influence the demography of marginal or colonizing populations and alter adaptive optima of mating systems, dispersal, and their associated traits. Incorporating the environmental dependence of inbreeding depression into theoretical models and empirical studies is necessary for understanding the genetic and ecological basis of inbreeding depression and its consequences in natural populations. Contents Summary 395 I. Introduction 396 II. What is inbreeding depression? 396 III. Causes of environment‐dependent inbreeding depression 397 IV. Ecological and evolutionary consequences of environment‐dependent inbreeding depression 401 V. Feedbacks when inbreeding depression influences the environment 404 VI. Conclusions and future directions 405 Acknowledgements 406 References 406

@article{cheptouEnvironmentdependentInbreedingDepression2011,
	title = {Environment‐dependent inbreeding depression: its ecological and evolutionary significance},
	volume = {189},
	copyright = {http://onlinelibrary.wiley.com/termsAndConditions\#vor},
	issn = {0028-646X, 1469-8137},
	shorttitle = {Environment‐dependent inbreeding depression},
	url = {https://nph.onlinelibrary.wiley.com/doi/10.1111/j.1469-8137.2010.03541.x},
	doi = {10.1111/j.1469-8137.2010.03541.x},
	abstract = {Summary
            Inbreeding depression is a major evolutionary and ecological force that influences population dynamics and the evolution of inbreeding‐avoidance traits such as mating systems and dispersal. There is now compelling evidence that inbreeding depression is environment‐dependent. Here, we discuss ecological and evolutionary consequences of environment‐dependent inbreeding depression. The environmental dependence of inbreeding depression may be caused by environment‐dependent phenotypic expression, environment‐dependent dominance, and environment‐dependent natural selection. The existence of environment‐dependent inbreeding depression challenges classical models of inbreeding as caused by unconditionally deleterious alleles, and suggests that balancing selection may shape inbreeding depression in natural populations; loci associated with inbreeding depression in some environments may even contribute to adaptation to others. Environment‐dependent inbreeding depression also has important, often neglected, ecological and evolutionary consequences: it can influence the demography of marginal or colonizing populations and alter adaptive optima of mating systems, dispersal, and their associated traits. Incorporating the environmental dependence of inbreeding depression into theoretical models and empirical studies is necessary for understanding the genetic and ecological basis of inbreeding depression and its consequences in natural populations.
            
              
                
                  
                  
                  
                  
                    
                      
                      Contents
                      
                    
                  
                  
                    
                      
                      Summary
                      395
                    
                    
                      I.
                      
                        Introduction
                      
                      396
                    
                    
                      II.
                      
                        What is inbreeding depression?
                      
                      396
                    
                    
                      III.
                      
                        Causes of environment‐dependent inbreeding depression
                      
                      397
                    
                    
                      IV.
                      
                        Ecological and evolutionary consequences of environment‐dependent inbreeding depression
                      
                      401
                    
                    
                      V.
                      
                        Feedbacks when inbreeding depression influences the environment
                      
                      404
                    
                    
                      VI.
                      
                        Conclusions and future directions
                      
                      405
                    
                    
                      
                      
                        Acknowledgements
                      
                      406
                    
                    
                      
                      
                        References
                      
                      406},
	language = {en},
	number = {2},
	urldate = {2025-03-30},
	journal = {New Phytologist},
	author = {Cheptou, Pierre‐Olivier and Donohue, Kathleen},
	month = jan,
	year = {2011},
	pages = {395--407},
}

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Here, we discuss ecological and evolutionary consequences of environment‐dependent inbreeding depression. The environmental dependence of inbreeding depression may be caused by environment‐dependent phenotypic expression, environment‐dependent dominance, and environment‐dependent natural selection. The existence of environment‐dependent inbreeding depression challenges classical models of inbreeding as caused by unconditionally deleterious alleles, and suggests that balancing selection may shape inbreeding depression in natural populations; loci associated with inbreeding depression in some environments may even contribute to adaptation to others. Environment‐dependent inbreeding depression also has important, often neglected, ecological and evolutionary consequences: it can influence the demography of marginal or colonizing populations and alter adaptive optima of mating systems, dispersal, and their associated traits. Incorporating the environmental dependence of inbreeding depression into theoretical models and empirical studies is necessary for understanding the genetic and ecological basis of inbreeding depression and its consequences in natural populations. Contents Summary 395 I. Introduction 396 II. What is inbreeding depression? 396 III. Causes of environment‐dependent inbreeding depression 397 IV. Ecological and evolutionary consequences of environment‐dependent inbreeding depression 401 V. Feedbacks when inbreeding depression influences the environment 404 VI. 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There is now compelling evidence that inbreeding depression is environment‐dependent. Here, we discuss ecological and evolutionary consequences of environment‐dependent inbreeding depression. The environmental dependence of inbreeding depression may be caused by environment‐dependent phenotypic expression, environment‐dependent dominance, and environment‐dependent natural selection. The existence of environment‐dependent inbreeding depression challenges classical models of inbreeding as caused by unconditionally deleterious alleles, and suggests that balancing selection may shape inbreeding depression in natural populations; loci associated with inbreeding depression in some environments may even contribute to adaptation to others. Environment‐dependent inbreeding depression also has important, often neglected, ecological and evolutionary consequences: it can influence the demography of marginal or colonizing populations and alter adaptive optima of mating systems, dispersal, and their associated traits. 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