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Plant invasion into high elevations implies adaptation to high UV-B environments: a multi-species experiment. Biol Invasions 2019. [DOI: 10.1007/s10530-019-02173-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Molina-Montenegro MA, Acuña-Rodríguez IS, Flores TSM, Hereme R, Lafon A, Atala C, Torres-Díaz C. Is the Success of Plant Invasions the Result of Rapid Adaptive Evolution in Seed Traits? Evidence from a Latitudinal Rainfall Gradient. FRONTIERS IN PLANT SCIENCE 2018; 9:208. [PMID: 29535741 PMCID: PMC5835042 DOI: 10.3389/fpls.2018.00208] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 02/05/2018] [Indexed: 05/29/2023]
Abstract
It has been widely suggested that invasion success along broad environmental gradients may be partially due to phenotypic plasticity, but rapid evolution could also be a relevant factor for invasions. Seed and fruit traits can be relevant for plant invasiveness since they are related to dispersal, germination, and fitness. Some seed traits vary along environmental gradients and can be heritable, with the potential to evolve by means of natural selection. Utilizing cross-latitude and reciprocal-transplant experiments, we evaluated the adaptive value of seed thickness as assessed by survival and biomass accumulation in Taraxacum officinale plants. In addition, thickness of a seed and Endosperm to Seed Coat Proportion (ESCP) in a second generation (F2) was measured to evaluate the heritability of this seed trait. On the other hand, we characterized the genetic variability of the sampled individuals with amplified fragment length polymorphism (AFLP) markers, analyzing its spatial distribution and population structure. Overall, thickness of seed coat (plus wall achene) decreases with latitude, indicating that individuals of T. officinale from northern populations have a thicker seed coat than those from southern populations. Germination increased with greater addition of water and seeds from southern localities germinated significantly more than those from the north. Additionally, reciprocal transplants showed significant differences in survival percentage and biomass accumulation among individuals from different localities and moreover, the high correlation between maternal plants and their offspring can be suggesting a high grade of heritability of this trait. Although genetic differentiation was found when was considered all populations, there was no significant differentiation when only was compared the northernmost populations which inhabit in the driest climate conditions. Our results suggest that climatic conditions could affect both, the ESCP and the genetic variability in the invasive T. officinale, suggesting that this seed trait could be indicative of adaptive selection. Thus, colonization along broad geographical gradients in many cases may be the result -in part- for the presence of functional traits as shown in invasive plant species with rapid adaptive capacity.
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Affiliation(s)
- Marco A. Molina-Montenegro
- Centro de Estudios Avanzados en Ecología Molecular y Funcional, Instituto de Ciencias Biológicas, Universidad de Talca, Talca, Chile
- Centro de Estudios Avanzados en Zonas Áridas, Facultad de Ciencias del Mar, Universidad Católica del Norte, Coquimbo, Chile
- Research Program “Adaptation of the Agriculture to Climate Change” PIEI A2C2, Universidad de Talca, Talca, Chile
| | - Ian S. Acuña-Rodríguez
- Centro de Estudios Avanzados en Ecología Molecular y Funcional, Instituto de Ciencias Biológicas, Universidad de Talca, Talca, Chile
| | - Tomás S. M. Flores
- Centro de Estudios Avanzados en Zonas Áridas, Facultad de Ciencias del Mar, Universidad Católica del Norte, Coquimbo, Chile
| | - Rasme Hereme
- Centro de Estudios Avanzados en Ecología Molecular y Funcional, Instituto de Ciencias Biológicas, Universidad de Talca, Talca, Chile
| | - Alejandra Lafon
- Centro de Investigación en Ecosistemas de la Patagonia, Coyhaique, Chile
| | - Cristian Atala
- Laboratorio de Anatomía y Ecología Funcional de Plantas, Instituto de Biología, Facultad de Ciencias, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Cristian Torres-Díaz
- Grupo de Biodiversidad y Cambio Global, Departamento de Ciencias Básicas, Universidad del Bío-Bío, Chillan, Chile
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Enhanced fitness and greater herbivore resistance: implications for dandelion invasion in an alpine habitat. Biol Invasions 2016. [DOI: 10.1007/s10530-016-1309-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Zong S, Jin Y, Xu J, Wu Z, He H, Du H, Wang L. Nitrogen deposition but not climate warming promotes Deyeuxia angustifolia encroachment in alpine tundra of the Changbai Mountains, Northeast China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 544:85-93. [PMID: 26657251 DOI: 10.1016/j.scitotenv.2015.11.144] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 11/26/2015] [Accepted: 11/26/2015] [Indexed: 06/05/2023]
Abstract
Vegetation in the alpine tundra area of the Changbai Mountains, one of two alpine tundra areas in China, has undergone great changes in recent decades. The aggressive herb species Deyeuxia angustifolia (Komarov) Y. L. Chang, a narrow-leaf small reed, was currently encroaching upon the alpine landscape and threatening tundra biota. The alpine tundra of the Changbai Mountains has been experiencing a warmer climate and receiving a high load of atmospheric nitrogen deposition. In this study, we aimed to assess the respective roles of climate warming and atmospheric nitrogen deposition in promoting the upward encroachment of D. angustifolia. We conducted experiments for three years to examine the response of D. angustifolia and a native alpine shrub, Rhododendron chrysanthum, to the conditions in which temperature and nitrogen were increased. Treatments consisting of temperature increase, nitrogen addition, temperature increase combined with nitrogen addition, and controls were conducted on the D. angustifolia communities with three encroachment levels (low, medium, and high levels). Results showed that 1) D. angustifolia grew in response to added nutrients but did not grow well when temperature increased. R. chrysanthum showed negligible responses to the simulated environmental changes. 2) Compared to R. chrysanthum, D. angustifolia could effectively occupy the above-ground space by increasing tillers and growing rapidly by efficiently using nitrogen. The difference in nitrogen uptake abilities between the two species contributed to expansion of D. angustifolia. 3) D. angustifolia encroachment could deeply change the biodiversity of tundra vegetation and may eventually result in the replacement of native biota, especially with nitrogen addition. Our research indicated that nutrient perturbation may be more important than temperature perturbation in promoting D. angustifolia encroachment upon the nutrient- and species-poor alpine tundra ecosystem in the Changbai Mountains.
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Affiliation(s)
- Shengwei Zong
- School of Geographical Sciences, Northeast Normal University, 130024 Changchun, China
| | - Yinghua Jin
- School of Geographical Sciences, Northeast Normal University, 130024 Changchun, China
| | - Jiawei Xu
- School of Geographical Sciences, Northeast Normal University, 130024 Changchun, China.
| | - Zhengfang Wu
- School of Geographical Sciences, Northeast Normal University, 130024 Changchun, China
| | - Hongshi He
- School of Geographical Sciences, Northeast Normal University, 130024 Changchun, China; School of Natural Resources, University of Missouri, Columbia, MO, USA
| | - Haibo Du
- School of Geographical Sciences, Northeast Normal University, 130024 Changchun, China
| | - Lei Wang
- School of Geographical Sciences, Northeast Normal University, 130024 Changchun, China
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Higher plasticity in ecophysiological traits enhances the performance and invasion success of Taraxacum officinale (dandelion) in alpine environments. Biol Invasions 2011. [DOI: 10.1007/s10530-011-0055-2] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Assessing the importance of disturbance, site conditions, and the biotic barrier for dandelion invasion in an Alpine habitat. Biol Invasions 2011. [DOI: 10.1007/s10530-011-9971-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Matesanz S, Gianoli E, Valladares F. Global change and the evolution of phenotypic plasticity in plants. Ann N Y Acad Sci 2010; 1206:35-55. [PMID: 20860682 DOI: 10.1111/j.1749-6632.2010.05704.x] [Citation(s) in RCA: 213] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Global change drivers create new environmental scenarios and selective pressures, affecting plant species in various interacting ways. Plants respond with changes in phenology, physiology, and reproduction, with consequences for biotic interactions and community composition. We review information on phenotypic plasticity, a primary means by which plants cope with global change scenarios, recommending promising approaches for investigating the evolution of plasticity and describing constraints to its evolution. We discuss the important but largely ignored role of phenotypic plasticity in range shifts and review the extensive literature on invasive species as models of evolutionary change in novel environments. Plasticity can play a role both in the short-term response of plant populations to global change as well as in their long-term fate through the maintenance of genetic variation. In new environmental conditions, plasticity of certain functional traits may be beneficial (i.e., the plastic response is accompanied by a fitness advantage) and thus selected for. Plasticity can also be relevant in the establishment and persistence of plants in novel environments that are crucial for populations at the colonizing edge in range shifts induced by climate change. Experimental studies show taxonomically widespread plastic responses to global change drivers in many functional traits, though there is a lack of empirical support for many theoretical models on the evolution of phenotypic plasticity. Future studies should assess the adaptive value and evolutionary potential of plasticity under complex, realistic global change scenarios. Promising tools include resurrection protocols and artificial selection experiments.
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Affiliation(s)
- Silvia Matesanz
- Laboratorio Internacional de Cambio Global (LINC-Global), Instituto de Recursos Naturales, CCMA-CSIC, Madrid, Spain.
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Molina-Montenegro MA, Atala C, Gianoli E. Phenotypic plasticity and performance of Taraxacum officinale (dandelion) in habitats of contrasting environmental heterogeneity. Biol Invasions 2009. [DOI: 10.1007/s10530-009-9638-6] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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