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Martínez-Ramos LM, Vázquez-Santana S, García-Franco J, Mandujano MC. Is self-incompatibility a reproductive barrier for hybridization in a sympatric species? AMERICAN JOURNAL OF BOTANY 2024; 111:e16309. [PMID: 38584339 DOI: 10.1002/ajb2.16309] [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: 04/13/2023] [Revised: 01/29/2024] [Accepted: 01/29/2024] [Indexed: 04/09/2024]
Abstract
PREMISE Barriers at different reproductive stages contribute to reproductive isolation. Self-incompatibility (SI) systems that prevent self-pollination could also act to control interspecific pollination and contribute to reproductive isolation, preventing hybridization. Here we evaluated whether SI contributes to reproductive isolation among four co-occurring Opuntia species that flower at similar times and may hybridize with each other. METHODS We assessed whether Opuntia cantabrigiensis, O. robusta, O. streptacantha, and O. tomentosa, were self-compatible and formed hybrid seeds in five manipulation treatments to achieve self-pollination, intraspecific cross-pollination, open pollination (control), interspecific crosses or apomixis, then recorded flowering phenology and synchrony. RESULTS All species flowered in the spring with a degree of synchrony, so that two pairs of species were predisposed to interspecific pollination (O. cantabrigiensis with O. robusta, O. streptacantha with O. tomentosa). All species had distinct reproductive systems: Opuntia cantabrigiensis is self-incompatible and did not produce hybrid seeds as an interspecific pollen recipient; O. robusta is a dioecious species, which formed a low proportion of hybrid seeds; O. streptacantha and O. tomentosa are self-compatible and produced hybrid seeds. CONCLUSIONS Opuntia cantabrigiensis had a strong pollen-pistil barrier, likely due to its self-incompatibility. Opuntia robusta, the dioecious species, is an obligate outcrosser and probably partially lost its ability to prevent interspecific pollen germination. Given that the self-compatible species can set hybrid seeds, we conclude that pollen-pistil interaction and high flowering synchrony represent weak barriers; whether reproductive isolation occurs later in their life cycle (e.g., germination or seedling survival) needs to be determined.
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Affiliation(s)
- Linda M Martínez-Ramos
- Instituto de Ecología, Universidad Nacional Autónoma de México (UNAM), Ciudad de México, México
- Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México (UNAM), Unidad de Posgrado, Edificio A, 1° Piso, Circuito de Posgrados, Ciudad Universitaria, Ciudad de México, México
| | - Sonia Vázquez-Santana
- Laboratorio de Desarrollo en Plantas, Facultad de Ciencias, Universidad Nacional Autónoma de México (UNAM), Ciudad de México, México
| | - José García-Franco
- Instituto de Ecología A. C. Red de Ecología Funcional, Carretera antigua a Coatepec 351, El Haya, Xalapa, Veracruz, México
| | - María C Mandujano
- Instituto de Ecología, Universidad Nacional Autónoma de México (UNAM), Ciudad de México, México
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2
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Diaz-Martin Z, Cisternas-Fuentes A, Kay KM, Raguso RA, Skogen K, Fant J. Reproductive strategies and their consequences for divergence, gene flow, and genetic diversity in three taxa of Clarkia. Heredity (Edinb) 2023; 131:338-349. [PMID: 37700028 PMCID: PMC10673949 DOI: 10.1038/s41437-023-00649-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 08/25/2023] [Accepted: 08/25/2023] [Indexed: 09/14/2023] Open
Abstract
Differences in reproductive strategies can have important implications for macro- and micro-evolutionary processes. We used a comparative approach through a population genetics lens to evaluate how three distinct reproductive strategies shape patterns of divergence among as well as gene flow and genetic diversity within three closely related taxa in the genus Clarkia. One taxon is a predominantly autonomous self-fertilizer and the other two taxa are predominantly outcrossing but vary in the primary pollinator they attract. In genotyping populations using genotyping-by-sequencing and comparing loci shared across taxa, our results suggest that differences in reproductive strategies in part promote evolutionary divergence among these closely related taxa. Contrary to expectations, we found that the selfing taxon had the highest levels of heterozygosity but a low rate of polymorphism. The high levels of fixed heterozygosity for a subset of loci suggests this pattern is driven by the presence of structural rearrangements in chromosomes common in other Clarkia taxa. In evaluating patterns within taxa, we found a complex interplay between reproductive strategy and geographic distribution. Differences in the mobility of primary pollinators did not translate to a difference in rates of genetic diversity and gene flow within taxa - a pattern likely due to one taxon having a patchier distribution and a less temporally and spatially reliable pollinator. Taken together, this work advances our understanding of the factors that shape gene flow and the distribution of genetic diversity within and among closely related taxa.
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Affiliation(s)
- Zoe Diaz-Martin
- Department of Biology, Spelman College, Atlanta, GA, 30314, USA.
- Negaunee Institute for Plant Conservation Science and Action, Chicago Botanic Garden, Glencoe, IL, 60035, USA.
| | - Anita Cisternas-Fuentes
- Negaunee Institute for Plant Conservation Science and Action, Chicago Botanic Garden, Glencoe, IL, 60035, USA
- Plant Biology and Conservation, Northwestern University, 2205 Tech Drive, Evanston, IL, 60208, USA
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile
| | - Kathleen M Kay
- Department of Ecology and Evolutionary Biology, University of California, 130 McAllister Way, Santa Cruz, CA, 95060, USA
| | - Robert A Raguso
- Department of Neurobiology and Behavior, Cornell University, Ithaca, NY, 14853, USA
| | - Krissa Skogen
- Negaunee Institute for Plant Conservation Science and Action, Chicago Botanic Garden, Glencoe, IL, 60035, USA
- Plant Biology and Conservation, Northwestern University, 2205 Tech Drive, Evanston, IL, 60208, USA
- Department of Biological Sciences, Clemson University, 132 Long Hall, Clemson, SC, 29631, USA
| | - Jeremie Fant
- Negaunee Institute for Plant Conservation Science and Action, Chicago Botanic Garden, Glencoe, IL, 60035, USA
- Plant Biology and Conservation, Northwestern University, 2205 Tech Drive, Evanston, IL, 60208, USA
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3
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Xu K. Population Rescue through an Increase in the Selfing Rate under Pollen Limitation: Plasticity versus Evolution. Am Nat 2023; 202:337-350. [PMID: 37606947 DOI: 10.1086/725425] [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: 08/23/2023]
Abstract
AbstractIncreased rates of self-fertilization offer reproductive assurance when plant populations experience pollen limitation, but self-fertilization may reduce fitness by exposing deleterious mutations. If an environmental change responsible for pollen limitation also induces plastic mating system shifts toward self-pollination, the reproductive assurance benefit and inbreeding depression cost of increased self-fertilization occur immediately, while the benefit and cost happen more gradually when increased self-fertilization occur through evolution. I built eco-evolutionary models to explore the demographic and genetic conditions in which higher self-fertilization by plasticity and/or evolution rescues populations, following deficits due to a sudden onset of pollen limitation. Rescue is most likely under an intermediate level of selfing rate increase, either through plasticity or evolution, and this critical level of selfing rate increase is higher under stronger pollen limitation. Generally, rescue is more likely through plasticity than through evolution. Under weak pollen limitation, rescue by enhanced self-fertilization may mainly occur through purging of deleterious mutations rather than reproductive assurance. The selfing rate increase conferring the highest rescue probability is lower when the initial population size is smaller. This article shows the importance of plasticity during plant population rescue and offers insights for future studies of the evolution of mating system plasticity.
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Royer‐Tardif S, Boisvert‐Marsh L, Godbout J, Isabel N, Aubin I. Finding common ground: Toward comparable indicators of adaptive capacity of tree species to a changing climate. Ecol Evol 2021; 11:13081-13100. [PMID: 34646454 PMCID: PMC8495821 DOI: 10.1002/ece3.8024] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 07/26/2021] [Indexed: 01/09/2023] Open
Abstract
Adaptive capacity, one of the three determinants of vulnerability to climate change, is defined as the capacity of species to persist in their current location by coping with novel environmental conditions through acclimation and/or evolution. Although studies have identified indicators of adaptive capacity, few have assessed this capacity in a quantitative way that is comparable across tree species. Yet, such multispecies assessments are needed by forest management and conservation programs to refine vulnerability assessments and to guide the choice of adaptation measures. In this paper, we propose a framework to quantitatively evaluate five key components of tree adaptive capacity to climate change: individual adaptation through phenotypic plasticity, population phenotypic diversity as influenced by genetic diversity, genetic exchange within populations, genetic exchange between populations, and genetic exchange between species. For each component, we define the main mechanisms that underlie adaptive capacity and present associated metrics that can be used as indices. To illustrate the use of this framework, we evaluate the relative adaptive capacity of 26 northeastern North American tree species using values reported in the literature. Our results show adaptive capacity to be highly variable among species and between components of adaptive capacity, such that no one species ranks consistently across all components. On average, the conifer Picea glauca and the broadleaves Acer rubrum and A. saccharinum show the greatest adaptive capacity among the 26 species we documented, whereas the conifers Picea rubens and Thuja occidentalis, and the broadleaf Ostrya virginiana possess the lowest. We discuss limitations that arise when comparing adaptive capacity among species, including poor data availability and comparability issues in metrics derived from different methods or studies. The breadth of data required for such an assessment exemplifies the multidisciplinary nature of adaptive capacity and the necessity of continued cross-collaboration to better anticipate the impacts of a changing climate.
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Affiliation(s)
- Samuel Royer‐Tardif
- Natural Resources CanadaCanadian Forest ServiceGreat Lakes Forestry CentreSault Sainte MarieONCanada
- Centre d'enseignement et de recherche en foresterie de Sainte‐Foy inc. (CERFO)QuébecQCCanada
| | - Laura Boisvert‐Marsh
- Natural Resources CanadaCanadian Forest ServiceGreat Lakes Forestry CentreSault Sainte MarieONCanada
| | - Julie Godbout
- Ministère des Forêts de la Faune et des Parcs du QuébecDirection de la recherche forestièreQuébecQCCanada
| | - Nathalie Isabel
- Natural Resources CanadaCanadian Forest ServiceLaurentian Forestry CentreQuébecQCCanada
| | - Isabelle Aubin
- Natural Resources CanadaCanadian Forest ServiceGreat Lakes Forestry CentreSault Sainte MarieONCanada
- Centre for Forest ResearchUniversité du Québec à MontréalMontréalQCCanada
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Clo J, Opedal ØH. Genetics of quantitative traits with dominance under stabilizing and directional selection in partially selfing species. Evolution 2021; 75:1920-1935. [PMID: 34219233 DOI: 10.1111/evo.14304] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 05/06/2021] [Accepted: 06/07/2021] [Indexed: 12/19/2022]
Abstract
Recurrent self-fertilization is thought to lead to reduced adaptive potential by decreasing the genetic diversity of populations, thus leading selfing lineages down an evolutionary "blind alley." Although well supported theoretically, empirical support for reduced adaptability in selfing species is limited. One limitation of classical theoretical models is that they assume pure additivity of the fitness-related traits that are under stabilizing selection, despite ample evidence that quantitative traits are subject to dominance. Here, we relax this assumption and explore the effect of dominance on a fitness-related trait under stabilizing selection for populations that differ in selfing rates. By decomposing the genetic variance into additional components specific to inbred populations, we show that dominance components can explain a substantial part of the genetic variance of inbred populations. We also show that ignoring these components leads to an upward bias in the predicted response to selection. Finally, we show that when considering the effect of dominance, the short-term evolutionary potential of populations remains comparable across the entire gradient in outcrossing rates, and genetic associations can even make selfing populations more evolvable on the longer term, reconciling theoretical, and empirical results.
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Affiliation(s)
- Josselin Clo
- AGAP, Univ Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, 34000, France.,Department of Botany, Charles University, Prague, Czechia
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Hamann E, Denney D, Day S, Lombardi E, Jameel MI, MacTavish R, Anderson JT. Review: Plant eco-evolutionary responses to climate change: Emerging directions. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2021; 304:110737. [PMID: 33568289 DOI: 10.1016/j.plantsci.2020.110737] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 10/23/2020] [Accepted: 10/25/2020] [Indexed: 05/14/2023]
Abstract
Contemporary climate change is exposing plant populations to novel combinations of temperatures, drought stress, [CO2] and other abiotic and biotic conditions. These changes are rapidly disrupting the evolutionary dynamics of plants. Despite the multifactorial nature of climate change, most studies typically manipulate only one climatic factor. In this opinion piece, we explore how climate change factors interact with each other and with biotic pressures to alter evolutionary processes. We evaluate the ramifications of climate change across life history stages,and examine how mating system variation influences population persistence under rapid environmental change. Furthermore, we discuss how spatial and temporal mismatches between plants and their mutualists and antagonists could affect adaptive responses to climate change. For example, plant-virus interactions vary from highly pathogenic to mildly facilitative, and are partly mediated by temperature, moisture availability and [CO2]. Will host plants exposed to novel, stressful abiotic conditions be more susceptible to viral pathogens? Finally, we propose novel experimental approaches that could illuminate how plants will cope with unprecedented global change, such as resurrection studies combined with experimental evolution, genomics or epigenetics.
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Affiliation(s)
- Elena Hamann
- Department of Genetics and Odum School of Ecology, University of Georgia, Athens, GA 30602, USA
| | - Derek Denney
- Department of Genetics and Odum School of Ecology, University of Georgia, Athens, GA 30602, USA
| | - Samantha Day
- Department of Genetics and Odum School of Ecology, University of Georgia, Athens, GA 30602, USA
| | - Elizabeth Lombardi
- Ecology and Evolutionary Biology, Cornell University, Ithaca, NY 14850, USA
| | - M Inam Jameel
- Department of Genetics and Odum School of Ecology, University of Georgia, Athens, GA 30602, USA
| | - Rachel MacTavish
- Department of Genetics and Odum School of Ecology, University of Georgia, Athens, GA 30602, USA
| | - Jill T Anderson
- Department of Genetics and Odum School of Ecology, University of Georgia, Athens, GA 30602, USA.
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Evans A, Jacquemyn H. Impact of mating system on range size and niche breadth in Epipactis (Orchidaceae). ANNALS OF BOTANY 2020; 126:1203-1214. [PMID: 32722751 PMCID: PMC7684703 DOI: 10.1093/aob/mcaa142] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 07/27/2020] [Indexed: 05/29/2023]
Abstract
BACKGROUND AND AIMS The geographical distribution of plant species is linked fundamentally not only to environmental variables, but also to key traits that affect the dispersal, establishment and evolutionary potential of a species. One of the key plant traits that can be expected to affect standing genetic variation, speed of adaptation and the capacity to colonize and establish in new habitats, and therefore niche breadth and range size, is the plant mating system. However, the precise role of the mating system in shaping range size and niche breadth of plant species remains unclear, and different studies have provided contrasting results. In this study, we tested the hypothesis that range size and niche breadth differed with mating system in the orchid genus Epipactis. METHODS We modelled the ecological niches of 14 Epipactis species in Europe using occurrence records and environmental satellite data in Maxent. Niche breadth and niche overlap in both geographic and environmental space were calculated from the resulting habitat suitability maps using ENMTools, and geographic range was estimated using α-hull range definition. Habitat suitability, environmental variable contributions and niche metrics were compared among species with different mating systems. KEY RESULTS We did not detect significant differences in niche breadth, occurrence probability or geographical range between autogamous and allogamous Epipactis species, although autogamous species demonstrated notably low variation in niche parameters. We also found no significant differences in niche overlap between species with the same mating system or different mating systems. For all Epipactis species, occurrence was strongly associated with land cover, particularly broad-leafed and coniferous forests, and with limestone bedrock. CONCLUSIONS These results suggest that the mating system does not necessarily contribute to niche breadth and differentiation, and that other factors (e.g. mycorrhizal specificity) may be more important drivers of range size and niche breadth in Epipactis and orchids in general.
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Affiliation(s)
- Alexandra Evans
- Plant Conservation and Population Biology, Department of Biology, KU Leuven, Heverlee, Belgium
| | - Hans Jacquemyn
- Plant Conservation and Population Biology, Department of Biology, KU Leuven, Heverlee, Belgium
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8
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Grant AG, Kalisz S. Do selfing species have greater niche breadth? Support from ecological niche modeling. Evolution 2019; 74:73-88. [PMID: 31707744 DOI: 10.1111/evo.13870] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 10/03/2019] [Accepted: 10/07/2019] [Indexed: 01/19/2023]
Abstract
We explore the relationship between plant mating system (selfing or outcrossing) and niche breadth to gain new insights into processes that drive species distributions. Using a comparative approach with highly selfing versus highly outcrossing sister species, we test the extent to which: (1) species pairs have evolved significant niche divergence and less niche overlap, (2) selfers have wider niche breadths than outcrossers or vice versa, and (3) niches of selfers and outcrossers are defined by significant differences in environmental variables. We applied predictive ecological niche modeling approaches to estimate and contrast niche divergence, overlap and breadth, and to identify key environmental variables associated with each species' niche for seven sister species with divergent mating systems. Data from 4862 geo-referenced herbarium occurrence records were compiled for 14 species in Collinsia and Tonella (Plantaginaceae) and 19 environmental variables associated with each record. We found sister species display significant niche divergence, though not as a function of divergence time, and overall, selfers have significantly wider niche breadths compared to their outcrossing sisters. Our results suggest that a selfing mating system likely contributes to the greater capacity to reach, reproduce, establish, and adapt to new habitats, which increases niche breadth of selfers.
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Affiliation(s)
- Alannie-Grace Grant
- Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, Tennessee, 37916
| | - Susan Kalisz
- Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, Tennessee, 37916
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9
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Koski MH, Galloway LF, Busch JW. Pollen limitation and autonomous selfing ability interact to shape variation in outcrossing rate across a species range. AMERICAN JOURNAL OF BOTANY 2019; 106:1240-1247. [PMID: 31415107 DOI: 10.1002/ajb2.1342] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 06/28/2019] [Indexed: 06/10/2023]
Abstract
PREMISE Hermaphroditic plants commonly reproduce through a mixture of selfing and outcrossing. The degree to which outcrossing rates reflect the availability of outcross pollen, genetic differentiation in the ability to autonomously self-fertilize, or both is often unclear. Despite the potential for autonomy and the pollination environment to jointly influence outcrossing, this interaction is rarely studied. METHODS We reviewed studies from the literature that tested whether the pollination environment or floral traits that cause autonomous selfing predict variation in outcrossing rate among populations. We also measured outcrossing rates in 23 populations of Campanula americana and examined associations with the pollination environment, autonomy, and their interaction. RESULTS Our review revealed that traits that facilitate selfing were often negatively associated with outcrossing rates whereas most aspects of the pollination environment poorly predicted outcrossing. Populations of C. americana varied from mixed mating to highly outcrossing, but variation was unrelated to population size, density, pollen limitation, or autonomous selfing ability. Outcrossing rate was significantly influenced by an interaction between autonomous selfing ability and pollen limitation. Across highly autonomous populations, elevated pollen limitation was associated with reduced outcrossing, while there was no relationship for less autonomous populations. CONCLUSIONS Both the ability to self autonomously and pollen limitation interact to shape outcrossing rates in C. americana. This work suggests that autonomy affords mating-system flexibility, though it is not ubiquitous in all populations across the species range. Interactions between traits influencing autonomy and pollen limitation are likely to explain variation in outcrossing rates among populations of flowering plants.
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Affiliation(s)
- Matthew H Koski
- Department of Biology, University of Virginia, P.O. Box 400328, Charlottesville, Virginia, 22904, USA
- Department of Biological Sciences, Clemson University, 132 Long Hall, Clemson, South Carolina, 29631, USA
| | - Laura F Galloway
- Department of Biology, University of Virginia, P.O. Box 400328, Charlottesville, Virginia, 22904, USA
| | - Jeremiah W Busch
- School of Biological Sciences, Washington State University, P.O. Box 644236, Pullman, Washington, 99164, USA
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10
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Sachdeva H. Effect of partial selfing and polygenic selection on establishment in a new habitat. Evolution 2019; 73:1729-1745. [PMID: 31339550 PMCID: PMC6771878 DOI: 10.1111/evo.13812] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 07/11/2019] [Indexed: 01/30/2023]
Abstract
This article analyzes how partial selfing in a large source population influences its ability to colonize a new habitat via the introduction of a few founder individuals. Founders experience inbreeding depression due to partially recessive deleterious alleles as well as maladaptation to the new environment due to selection on a large number of additive loci. I first introduce a simplified version of the inbreeding history model to characterize mutation‐selection balance in a large, partially selfing source population under selection involving multiple nonidentical loci. I then use individual‐based simulations to study the eco‐evolutionary dynamics of founders establishing in the new habitat under a model of hard selection. The study explores how selfing rate shapes establishment probabilities of founders via effects on both inbreeding depression and adaptability to the new environment, and also distinguishes the effects of selfing on the initial fitness of founders from its effects on the long‐term adaptive response of the populations they found. A high rate of (but not complete) selfing is found to aid establishment over a wide range of parameters, even in the absence of mate limitation. The sensitivity of the results to assumptions about the nature of polygenic selection is discussed.
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Affiliation(s)
- Himani Sachdeva
- Institute of Science and Technology Austria (IST Austria), Klosterneuburg, 3400, Austria
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11
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Wang XJ, Hu QJ, Guo XY, Wang K, Ru DF, German DA, Weretilnyk EA, Abbott RJ, Lascoux M, Liu JQ. Demographic expansion and genetic load of the halophyte model plantEutrema salsugineum. Mol Ecol 2018; 27:2943-2955. [DOI: 10.1111/mec.14738] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 05/16/2018] [Accepted: 05/24/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Xiao-Juan Wang
- Key Laboratory for Bio-resource and Eco-environment of Ministry of Education; College of Life Sciences; Sichuan University; Chengdu China
| | - Quan-Jun Hu
- Key Laboratory for Bio-resource and Eco-environment of Ministry of Education; College of Life Sciences; Sichuan University; Chengdu China
| | - Xin-Yi Guo
- Key Laboratory for Bio-resource and Eco-environment of Ministry of Education; College of Life Sciences; Sichuan University; Chengdu China
| | - Kun Wang
- Key Laboratory for Bio-resource and Eco-environment of Ministry of Education; College of Life Sciences; Sichuan University; Chengdu China
| | - Da-Fu Ru
- Key Laboratory for Bio-resource and Eco-environment of Ministry of Education; College of Life Sciences; Sichuan University; Chengdu China
| | - Dmitry A. German
- Department of Biodiversity and Plant Systematics; Centre for Organismal Studies (COS Heidelberg); Heidelberg University; Heidelberg Germany
- South-Siberian Botanical Garden; Altai State University; Barnaul Russia
| | | | | | - Martin Lascoux
- Department of Ecology and Genetics; Evolutionary Biology Center and Science for Life Laboratory; Uppsala University; Uppsala Sweden
| | - Jian-quan Liu
- Key Laboratory for Bio-resource and Eco-environment of Ministry of Education; College of Life Sciences; Sichuan University; Chengdu China
- State Key Laboratory of Grassland Agro-Ecosystem; College of Life Science; Lanzhou University; Lanzhou China
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12
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Alvarado-Serrano DF, Chang SM, Baucom RS. Natural and Anthropogenic Influences on the Mating System of the Common Morning Glory. J Hered 2017; 109:126-137. [DOI: 10.1093/jhered/esx104] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2017] [Accepted: 11/13/2017] [Indexed: 11/13/2022] Open
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13
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Barrett SC, Harder LD. The Ecology of Mating and Its Evolutionary Consequences in Seed Plants. ANNUAL REVIEW OF ECOLOGY EVOLUTION AND SYSTEMATICS 2017. [DOI: 10.1146/annurev-ecolsys-110316-023021] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Spencer C.H. Barrett
- Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Ontario M5S 3B2, Canada
| | - Lawrence D. Harder
- Department of Biological Sciences, University of Calgary, Calgary, Alberta T2N 1N4, Canada
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Pannell JR, Auld JR, Brandvain Y, Burd M, Busch JW, Cheptou PO, Conner JK, Goldberg EE, Grant AG, Grossenbacher DL, Hovick SM, Igic B, Kalisz S, Petanidou T, Randle AM, de Casas RR, Pauw A, Vamosi JC, Winn AA. The scope of Baker's law. THE NEW PHYTOLOGIST 2015; 208:656-67. [PMID: 26192018 DOI: 10.1111/nph.13539] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Accepted: 05/27/2015] [Indexed: 05/13/2023]
Abstract
Baker's law refers to the tendency for species that establish on islands by long-distance dispersal to show an increased capacity for self-fertilization because of the advantage of self-compatibility when colonizing new habitat. Despite its intuitive appeal and broad empirical support, it has received substantial criticism over the years since it was proclaimed in the 1950s, not least because it seemed to be contradicted by the high frequency of dioecy on islands. Recent theoretical work has again questioned the generality and scope of Baker's law. Here, we attempt to discern where the idea is useful to apply and where it is not. We conclude that several of the perceived problems with Baker's law fall away when a narrower perspective is adopted on how it should be circumscribed. We emphasize that Baker's law should be read in terms of an enrichment of a capacity for uniparental reproduction in colonizing situations, rather than of high selfing rates. We suggest that Baker's law might be tested in four different contexts, which set the breadth of its scope: the colonization of oceanic islands, metapopulation dynamics with recurrent colonization, range expansions with recurrent colonization, and colonization through species invasions.
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Affiliation(s)
- John R Pannell
- Department of Ecology and Evolution, University of Lausanne, 1015, Lausanne, Switzerland
| | - Josh R Auld
- Department of Biology, West Chester University, West Chester, PA, 19383, USA
| | - Yaniv Brandvain
- Department of Plant Biology, University of Minnesota, St Paul, MN, 55108, USA
| | - Martin Burd
- School of Biological Sciences, Monash University, Melbourne, VIC, 3800, Australia
| | - Jeremiah W Busch
- School of Biological Sciences, Washington State University, Pullman, WA, 99164, USA
| | - Pierre-Olivier Cheptou
- CEFE UMR 5175, CNRS, Universite de Montpellier, Université Paul-Valery Montpellier, EPHE, CEFE 34293, Montpellier Cedex 05, France
| | - Jeffrey K Conner
- Kellogg Biological Station and Department of Plant Biology, Michigan State University, Hickory Corners, MI, 49060, USA
| | - Emma E Goldberg
- Department of Ecology, Evolution, and Behavior, University of Minnesota, St Paul, MN, 55108, USA
| | | | | | - Stephen M Hovick
- Department of Evolution, Ecology, and Organismal Biology, The Ohio State University, Columbus, OH, 43210, USA
| | - Boris Igic
- Department of Biological Sciences, University of Illinois at Chicago, 840 W Taylor St, M/C 067, Chicago, IL, 60607, USA
| | - Susan Kalisz
- Department of Biology, University of Pittsburgh, Pittsburgh, PA, 15260, USA
| | - Theodora Petanidou
- Laboratory of Biogeography and Ecology, Department of Geography, University of the Aegean, 81100 Mytilene, Lesvos, Greece
| | - April M Randle
- Department of Environmental Science, University of San Francisco, San Francisco, CA, 94117-1049, USA
| | - Rafael Rubio de Casas
- CEFE UMR 5175, CNRS, Universite de Montpellier, Université Paul-Valery Montpellier, EPHE, CEFE 34293, Montpellier Cedex 05, France
- Departmento Ecología, Facultad de Ciencias, Universidad de Granada, UGR, 18071, Granada, Spain
- Estación Experimental de Zonas Áridas, EEZA-CSIC, Carretera de Sacramento s/n, La Cañada de San Urbano, EEZA 04120, Almeria, Spain
| | - Anton Pauw
- Department of Botany and Zoology, Stellenbosch University, Stellenbosch, 7602, South Africa
| | - Jana C Vamosi
- Department of Biological Sciences, University of Calgary, Calgary, Alberta, T2N1N4, Canada
| | - Alice A Winn
- Department of Biological Science, Florida State University, Tallahassee, FL, 32306, USA
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