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Gorné LD, Díaz S, Minden V, Onoda Y, Kramer K, Muir C, Michaletz ST, Lavorel S, Sharpe J, Jansen S, Slot M, Chacon E, Boenisch G. The acquisitive-conservative axis of leaf trait variation emerges even in homogeneous environments. ANNALS OF BOTANY 2022; 129:709-722. [PMID: 33245747 PMCID: PMC9113165 DOI: 10.1093/aob/mcaa198] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 11/18/2020] [Indexed: 05/12/2023]
Abstract
BACKGROUND AND AIMS The acquisitive-conservative axis of plant ecological strategies results in a pattern of leaf trait covariation that captures the balance between leaf construction costs and plant growth potential. Studies evaluating trait covariation within species are scarcer, and have mostly dealt with variation in response to environmental gradients. Little work has been published on intraspecific patterns of leaf trait covariation in the absence of strong environmental variation. METHODS We analysed covariation of four leaf functional traits [specific leaf area (SLA) leaf dry matter content (LDMC), force to tear (Ft) and leaf nitrogen content (Nm)] in six Poaceae and four Fabaceae species common in the dry Chaco forest of Central Argentina, growing in the field and in a common garden. We compared intraspecific covariation patterns (slopes, correlation and effect size) of leaf functional traits with global interspecific covariation patterns. Additionally, we checked for possible climatic and edaphic factors that could affect the intraspecific covariation pattern. KEY RESULTS We found negative correlations for the LDMC-SLA, Ft-SLA, LDMC-Nm and Ft-Nm trait pairs. This intraspecific covariation pattern found both in the field and in the common garden and not explained by climatic or edaphic variation in the field follows the expected acquisitive-conservative axis. At the same time, we found quantitative differences in slopes among different species, and between these intraspecific patterns and the interspecific ones. Many of these differences seem to be idiosyncratic, but some appear consistent among species (e.g. all the intraspecific LDMC-SLA and LDMC-Nm slopes tend to be shallower than the global pattern). CONCLUSIONS Our study indicates that the acquisitive-conservative leaf functional trait covariation pattern occurs at the intraspecific level even in the absence of relevant environmental variation in the field. This suggests a high degree of variation-covariation in leaf functional traits not driven by environmental variables.
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Affiliation(s)
- Lucas D Gorné
- Universidad Nacional de Córdoba, Facultad de Ciencias Exactas Físicas y Naturales, Córdoba, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas, CONICET, IMBiV, Córdoba, Argentina
- For correspondence. E-mail
| | - Sandra Díaz
- Universidad Nacional de Córdoba, Facultad de Ciencias Exactas Físicas y Naturales, Córdoba, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas, CONICET, IMBiV, Córdoba, Argentina
| | - Vanessa Minden
- Institute of Biology and Environmental Sciences, Landscape Ecology Group, University of Oldenburg, Oldenburg, Germany
- Department of Biology, Ecology and Biodiversity, Vrije Universiteit Brussel, Brussels, Belgium
| | - Yusuke Onoda
- Division of Forest and Biomaterials Science, Graduate School of Agriculture, Kyoto University, Oiwake, Kitashirakawa, Kyoto, Japan
| | - Koen Kramer
- Wageningen University & Research, Wageningen University, The Netherlands
| | | | - Sean T Michaletz
- Department of Botany and Biodiversity Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | | | | | - Steven Jansen
- Institute of Systematic Botany and Ecology, Ulm University, Ulm, Germany
| | - Martijn Slot
- Smithsonian Tropical Research Institute, Panama City, Republic of Panama
| | - Eduardo Chacon
- School of Biology, Universidad de Costa Rica, San José, Costa Rica
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Bessega C, Vilardi JC, Cony M, Saidman B, Pometti C. Low genetic variation of foliar traits among Prosopis chilensis (Leguminosae) provenances. JOURNAL OF PLANT RESEARCH 2022; 135:221-234. [PMID: 35149910 DOI: 10.1007/s10265-022-01378-9] [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: 11/08/2021] [Accepted: 01/30/2022] [Indexed: 06/14/2023]
Abstract
Prosopis chilensis (Molina) Stuntz (Leguminosae) is a valuable native species in Argentina that has been proposed to be used in reforestation, afforestation and restoration programmes. Natural provenances show important differentiation in height, shape, spine size, fruits and foliar traits throughout their distribution in the semiarid Monte ecoregion. The goal of this work was to characterize the genetic basis of the leaf variation in P. chilensis aiming to contribute to the improvement management program. We analyzed morphological variation and estimate narrow sense heritability for ten quantitative traits from a provenance-progeny trial founded from open pollinated families. We assessed the variance components by a generalized linear mixed model. Differences among provenances were quantified through univariate QST statistics and multivariate discriminant analysis of principal components. Finally, univariate and multivariate neutrality test were conducted to unveil the evolutionary forces that shape the variation. Univariate and multivariate analysis showed low genetic variation in foliar traits among provenances grown in the common garden. Consistently, the QST estimates for each trait were low. Both, the univariate (QST-FST comparison) and the multivariate neutrality test suggest that the leaf variation among provenances may be shaped by genetic drift rather than selective forces. Heritability estimates were significant only for leaflet apex and leaflet apex/leaflet area. Since genetic variation for most foliar traits among provenances estimated under controlled environmental conditions were very low or absent, the variation described in the wild would be explained merely by plastic response to varying environments. These results are discussed in terms of adaptive strategies and the use of different provenances as seed sources within the framework of the improvement program. It is expected that P. chilensis seeds or seedlings from trees selected under economical criteria will be able to develop in different areas thanks to the phenotypic plasticity of leaf traits.
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Affiliation(s)
- Cecilia Bessega
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento Ecología, Genética y Evolución (EGE), Intendente Guiraldes 2160, Ciudad Universitaria, Pabellón 2, CABA (1428), Buenos Aires, Argentina.
- CONICET-Universidad de Buenos Aires, Instituto de Ecología, Genética y Evolución (IEGEBA), Int. Guiraldes 2160 (1428), Buenos Aires, Argentina.
| | - Juan Cesar Vilardi
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento Ecología, Genética y Evolución (EGE), Intendente Guiraldes 2160, Ciudad Universitaria, Pabellón 2, CABA (1428), Buenos Aires, Argentina
- CONICET-Universidad de Buenos Aires, Instituto de Ecología, Genética y Evolución (IEGEBA), Int. Guiraldes 2160 (1428), Buenos Aires, Argentina
| | - Mariano Cony
- Instituto Argentino de Investigaciones de las zonas Áridas (IADIZA-CONICET)-CCT, Av. Ruiz Leal s/n (5500), Mendoza, Argentina
| | - Beatriz Saidman
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento Ecología, Genética y Evolución (EGE), Intendente Guiraldes 2160, Ciudad Universitaria, Pabellón 2, CABA (1428), Buenos Aires, Argentina
- CONICET-Universidad de Buenos Aires, Instituto de Ecología, Genética y Evolución (IEGEBA), Int. Guiraldes 2160 (1428), Buenos Aires, Argentina
| | - Carolina Pometti
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento Ecología, Genética y Evolución (EGE), Intendente Guiraldes 2160, Ciudad Universitaria, Pabellón 2, CABA (1428), Buenos Aires, Argentina
- CONICET-Universidad de Buenos Aires, Instituto de Ecología, Genética y Evolución (IEGEBA), Int. Guiraldes 2160 (1428), Buenos Aires, Argentina
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Tapia-Pastrana F. Chromosomal Changes in Prosopis glandulosa var. torreyana (Honey Mesquite) Species Widely Distributed in North America. CYTOLOGIA 2021. [DOI: 10.1508/cytologia.86.235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Fernando Tapia-Pastrana
- Division of Postgraduate Studies and Research, Faculty of Higher Studies Zaragoza, National Autonomous University of Mexico
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4
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Palmquist EC, Allan GJ, Ogle K, Whitham TG, Butterfield BJ, Shafroth PB. Riverine complexity and life history inform restoration in riparian environments in the southwestern United States. Restor Ecol 2021. [DOI: 10.1111/rec.13418] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Emily C. Palmquist
- Grand Canyon Monitoring and Research Center U.S. Geological Survey, Southwest Biological Science Center 2255 North Gemini Drive Flagstaff AZ 86001 U.S.A
- Department of Biological Sciences Northern Arizona University Flagstaff AZ 86011 U.S.A
| | - Gerard J. Allan
- Department of Biological Sciences Northern Arizona University Flagstaff AZ 86011 U.S.A
- Center for Adaptable Western Landscapes Northern Arizona University Box 5640 Flagstaff AZ 86011 U.S.A
| | - Kiona Ogle
- School of Informatics, Computing and Cyber Systems Northern Arizona University Box 5693 Flagstaff AZ 86011 U.S.A
| | - Thomas G. Whitham
- Department of Biological Sciences Northern Arizona University Flagstaff AZ 86011 U.S.A
- Center for Adaptable Western Landscapes Northern Arizona University Box 5640 Flagstaff AZ 86011 U.S.A
| | - Bradley J. Butterfield
- Center for Ecosystem Science and Society Northern Arizona University Box 5640 Flagstaff AZ 86011 U.S.A
| | - Patrick B. Shafroth
- Fort Collins Science Center U.S. Geological Survey 2150 Centre Avenue, Building C Fort Collins CO 80526 U.S.A
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5
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Bessega C, Pometti C, Fortunato R, Greene F, Santoro CM, McRostie V. Genetic studies of various Prosopis species (Leguminosae, Section Algarobia) co-occurring in oases of the Atacama Desert (northern Chile). Ecol Evol 2021; 11:2375-2390. [PMID: 33717462 PMCID: PMC7920779 DOI: 10.1002/ece3.7212] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 12/31/2020] [Accepted: 01/05/2021] [Indexed: 11/30/2022] Open
Abstract
In the Atacama Desert from northern Chile (19-24°S), Prosopis (Leguminosae) individuals are restricted to oases that are unevenly distributed and isolated from each other by large stretches of barren landscape constituting an interesting study model as the degree of connectivity between natural populations depends on their dispersal capacity and the barriers imposed by the landscape. Our goal was to assess the genetic diversity and the degree of differentiation among groups of Prosopis individuals of different species from Section Algarobia and putative hybrids (hereafter populations) co-occurring in these isolated oases from the Atacama Desert and determine whether genetic patterns are associated with dispersal barriers. Thirteen populations were sampled from oases located on three hydrographic basins (Pampa del Tamarugal, Rio Loa, and Salar de Atacama; northern, central, and southern basins, respectively). Individuals genotyped by eight SSRs show high levels of genetic diversity (H O = 0.61, A r = 3.5) and low but significant genetic differentiation among populations (F ST = 0.128, F ST-ENA = 0.129, D JOST = 0.238). The AMOVA indicates that most of the variation occurs within individuals (79%) and from the variance among individuals (21%); almost, the same variation can be found between basins and between populations within basins. Differentiation and structure results were not associated with the basins, retrieving up to four genetic clusters and certain admixture in the central populations. Pairwise differentiation comparisons among populations showed inconsistencies considering their distribution throughout the basins. Genetic and geographic distances were significantly correlated at global and within the basins considered (p < .02), but low correlation indices were obtained (r < .37). These results are discussed in relation to the fragmented landscape, considering both natural and non-natural (humans) dispersal agents that may be moving Prosopis in the Atacama Desert.
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Affiliation(s)
- Cecilia Bessega
- Departamento Ecología, Genética y Evolución (EGE), Genética de Especies Leñosas (GEEL)Facultad de Ciencias Exactas y NaturalesUniversidad de Buenos AiresBuenos AiresArgentina
- Instituto de Ecología, Genética y Evolución (IEGEBA)CONICET‐Universidad de Buenos AiresBuenos AiresArgentina
| | - Carolina Pometti
- Departamento Ecología, Genética y Evolución (EGE), Genética de Especies Leñosas (GEEL)Facultad de Ciencias Exactas y NaturalesUniversidad de Buenos AiresBuenos AiresArgentina
- Instituto de Ecología, Genética y Evolución (IEGEBA)CONICET‐Universidad de Buenos AiresBuenos AiresArgentina
| | - Reneé Fortunato
- Instituto de Recursos BiológicosCIRNINTACONICETBuenos AiresArgentina
- ESIIyCAUniversidad de MorónMorónArgentina
| | | | | | - Virginia McRostie
- Facultad de Ciencias SocialesEscuela de AntropologíaPontificia Universidad Católica de ChileSantiagoChile
- Centro del Desierto de Atacama UCSantiagoChile
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Tapia-Pastrana F. Differential Amphiplasty and Nucleolar Dominance in Somatic Metaphase Cells as Evidence of Hybridization in Prosopis juliflora (Leguminosae, Mimosoideae). CYTOLOGIA 2020. [DOI: 10.1508/cytologia.85.295] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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7
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Unraveling the Chloroplast Genomes of Two Prosopis Species to Identify Its Genomic Information, Comparative Analyses and Phylogenetic Relationship. Int J Mol Sci 2020; 21:ijms21093280. [PMID: 32384622 PMCID: PMC7247323 DOI: 10.3390/ijms21093280] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 04/14/2020] [Accepted: 04/23/2020] [Indexed: 12/18/2022] Open
Abstract
Genus Prosopis (family Fabaceae) are shrubby trees, native to arid and semi-arid regions of Asia, Africa, and America and known for nitrogen fixation. Here, we have sequenced the complete chloroplast (cp) genomes of two Prosopis species (P. juliflora and P. cineraria) and compared them with previously sequenced P. glandulosa, Adenanthera microsperma, and Parkia javanica belonging to the same family. The complete genome sequences of Prosopis species and related species ranged from 159,389 bp (A. microsperma) to 163,677 bp (P. cineraria). The overall GC contents of the genomes were almost the similar (35.9–36.6%). The P. juliflora and P. cineraria genomes encoded 132 and 131 genes, respectively, whereas both the species comprised of 85 protein-coding genes higher than other compared species. About 140, 134, and 129 repeats were identified in P. juliflora, P. cineraria and P. glandulosa cp genomes, respectively. Similarly, the maximum number of simple sequence repeats were determined in P. juliflora (88), P. cineraria (84), and P. glandulosa (78). Moreover, complete cp genome comparison determined a high degree of sequence similarity among P. juliflora, P. cineraria, and P. glandulosa, however some divergence in the intergenic spacers of A. microsperma and Parkia javanica were observed. The phylogenetic analysis showed that P. juliflora is closer to P. cineraria than P. glandulosa.
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8
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Ecophylogeography of the disjunct South American xerophytic tree species Prosopis chilensis (Fabaceae). Biol J Linn Soc Lond 2020. [DOI: 10.1093/biolinnean/blaa006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractThe intraspecific evolutionary history of South American xerophytic plant species has been poorly explored. The tree species Prosopis chilensis has a disjunct distribution in four South American regions: southern Peru, southern Bolivia, central–western Argentina and central Chile. Here, we combined phylogeographical (based on chloroplast and nuclear markers), morphological and climatic data to evaluate the relative contribution of historical demo-stochastic and adaptive processes in differentiating the disjunct areas of distribution. The results obtained with the two molecular markers revealed two closely related phylogroups (Northern and Southern, predominating in Bolivian Chaco and in Argentine Chaco/Monte, respectively), which would have diverged at ~5 Mya, probably associated with transgression of the Paranaense Sea. Bolivia and Argentina have a larger number of exclusive haplotypes/alleles and higher molecular diversity than Chile, suggesting a long-lasting in situ persistence in the former and a relatively recent colonization in the latter, from the Bolivian and Argentinian lineages. The two main lineages differ in morphology and climatic niche, revealing two significant, independent evolutionary units within P. chilensis promoted by local adaptation and geographical isolation.
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9
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Bessega C, Pometti C, López RP, Larrea‐Alcázar D, Fortunato RH, Saidman B, Vilardi JC. Genetic diversity and differentiation among Prosopis alba (Leguminosae) populations from dry valleys of Bolivia with different levels of human disturbance and altitude. Ecol Evol 2018; 8:11309-11321. [PMID: 30519445 PMCID: PMC6262908 DOI: 10.1002/ece3.4610] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 07/16/2018] [Accepted: 09/13/2018] [Indexed: 12/13/2022] Open
Abstract
The fast expansion of human population around La Paz, Bolivia (3,200-4,100 m.a.s.l.) triggered new suburban settlements in nearby areas in valleys and mountain feet. The white mesquite, Prosopis alba Griseb. (Leguminosae), is a resource (originally used by native communities) that is strongly affected by changes in land use. A gradient in the level of disturbance is found moving away from the La Paz city toward less altitude areas. The main objective of this study was to characterize genetically three P. alba populations with different levels of human disturbance located at different altitudes in Bolivia, in order to provide some guidelines for management and conservation of these species. Based on 10 SSR loci, the populations showed high level of genetic diversity in comparison with other forest species. The population less disturbed and situated at the lowest altitude was the most variable (H e = 0.51-0.42), whereas the less variable was the most disturbed and situated at the highest altitude. Heterozygote excess was observed in all populations. Most of genetic diversity (99%) is contained within populations. Genetic differentiation among populations is low (1%), suggesting low gene flow among populations. No evidence of recent bottlenecks events was detected. The estimates of the effective population size were low in all populations. The results are in agreement with the hypothesis that genetic diversity is reduced by the impact of anthropic disturbance in the population located at higher altitude in comparison with the lightly disturbed situated at lower altitude and farther from urban settlements.
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Affiliation(s)
- Cecilia Bessega
- Departamento Ecología, Genética y Evolución, Facultad de Ciencias Exactas y NaturalesUniversidad de Buenos AiresBuenos AiresArgentina
- Instituto de Ecología, Genética y Evolución (IEGEBA)CONICET‐Universidad de Buenos AiresBuenos AiresArgentina
| | - Carolina Pometti
- Departamento Ecología, Genética y Evolución, Facultad de Ciencias Exactas y NaturalesUniversidad de Buenos AiresBuenos AiresArgentina
- Instituto de Ecología, Genética y Evolución (IEGEBA)CONICET‐Universidad de Buenos AiresBuenos AiresArgentina
| | - Ramiro Pablo López
- Facultad de Ciencias Puras y Naturales, Carrera de BiologíaUniversidad Mayor de San AndrésLa PazBolivia
| | - Daniel Larrea‐Alcázar
- Asociación Boliviana para la Investigación y Conservación de Ecosistemas Andino‐Amazónicos (ACEAA)La PazBolivia
| | - Reneé H. Fortunato
- N. Repetto y Los Reseros s.n., Hurlingham (1686)Argentina ‐ Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)Instituto de Recursos Biológicos (CIRN–CNIA, INTA)Buenos AiresArgentina
| | - Beatriz Saidman
- Departamento Ecología, Genética y Evolución, Facultad de Ciencias Exactas y NaturalesUniversidad de Buenos AiresBuenos AiresArgentina
- Instituto de Ecología, Genética y Evolución (IEGEBA)CONICET‐Universidad de Buenos AiresBuenos AiresArgentina
| | - Juan Cesar Vilardi
- Departamento Ecología, Genética y Evolución, Facultad de Ciencias Exactas y NaturalesUniversidad de Buenos AiresBuenos AiresArgentina
- Instituto de Ecología, Genética y Evolución (IEGEBA)CONICET‐Universidad de Buenos AiresBuenos AiresArgentina
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10
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Alves FM, Sartori ÂLB, Zucchi MI, Azevedo‐Tozzi AMG, Tambarussi EV, Alves‐Pereira A, de Souza AP. Genetic structure of two Prosopis species in Chaco areas: A lack of allelic diversity diagnosis and insights into the allelic conservation of the affected species. Ecol Evol 2018; 8:6558-6574. [PMID: 30038757 PMCID: PMC6053563 DOI: 10.1002/ece3.4137] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 03/09/2018] [Accepted: 03/19/2018] [Indexed: 11/08/2022] Open
Abstract
The Gran Chaco is the largest continuous region of the South American dry forest, spanning Argentina, Paraguay, Bolivia, and Brazil. Prosopis rubriflora and Prosopis ruscifolia are typical tree species of chaquenian area forests, which have been subjected to continuous fragmentation caused by cattle raising. This study evaluated P. rubriflora and P. ruscifolia in areas with varying levels of disturbance. We investigated the contemporary genetic diversities of both species in areas with distinct anthropogenic disturbances. Even with a lower heterozygote frequency, disturbed areas can provide important storage for alleles, allowing the maintenance of diversity. The genetic diversity of P. rubriflora was surprisingly similar to that of P. ruscifolia (He = 0.59 and He = 0.60, respectively) even with very different distribution ranges of both species. However, P. ruscifolia exhibited a higher intrapopulation fixation index than P. rubriflora. P. rubriflora showed evidence of bottlenecking in 64% of the sampled areas, while P. ruscifolia showed such evidence in 36% of the sampled areas. Additionally, P. rubriflora had two distinct populations due to its disjunctive geographic distribution, whereas P. ruscifolia had a single population that exhibited few signs of population structure in some areas, possibly due to the main pollinators presenting a short range of dispersion. Our results suggest that 42 Chaco areas should be conserved to retain the minimum of 500 individuals necessary to maintain genetic diversity for 100-1,000 generations. This study improves our understanding of these two Prosopis species and provides information for the conservation of their genetic diversities.
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Affiliation(s)
- Fábio M. Alves
- Department of Plant BiologyInstitute of BiologyUniversity of Campinas – UNICAMPCampinasSPBrazil
- Center for Molecular Biology and Genetic Engineering (CBMEG)University of Campinas – UNICAMPCampinasSPBrazil
| | - Ângela L. B. Sartori
- Center of Biological and Health Sciences (CCBS)Federal University of Mato Grosso do Sul – UFMSCampo GrandeMSBrazil
| | - Maria I. Zucchi
- São Paulo Agency of Technology and Agro‐BusinessPiracicabaSPBrazil
| | - Ana M. G. Azevedo‐Tozzi
- Department of Plant BiologyInstitute of BiologyUniversity of Campinas – UNICAMPCampinasSPBrazil
| | | | - Alessandro Alves‐Pereira
- Center for Molecular Biology and Genetic Engineering (CBMEG)University of Campinas – UNICAMPCampinasSPBrazil
| | - Anete P. de Souza
- Department of Plant BiologyInstitute of BiologyUniversity of Campinas – UNICAMPCampinasSPBrazil
- Center for Molecular Biology and Genetic Engineering (CBMEG)University of Campinas – UNICAMPCampinasSPBrazil
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Fontana ML, Pérez VR, Luna CV. Características evolutivas en Prosopis spp.: citogenética, genética e hibridaciones. RODRIGUÉSIA 2018. [DOI: 10.1590/2175-7860201869212] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Resumen Prosopis es un género dentro del clado Mimosoid caracterizado por las disyunciones que presentan sus actuales áreas de distribución y las dificultades para esclarecer su filogenia. Este trabajo presenta un análisis bibliográfico actualizado sobre las características evolutivas, citogenéticas, genéticas e hibridaciones del género. Los datos disponibles sugieren que divergió tempranamente en varios linajes principales, aunque dentro de algunos de ellos han ocurrido episodios recientes de especiación parcial. La forma en que se distribuye la variabilidad genética dentro y entre poblaciones depende, entre otros factores, del sistema reproductivo y la estrategia adaptativa. La estructura de las poblaciones, a su vez, establece restricciones a los procesos evolutivos tendientes a la adaptación creciente al ambiente y/o la diferenciación específica. . Es un género esencialmente diploide (2n = 28) pero se ha informado poliploidía y frecuentes procesos de hibridación e introgresión interespecífica. La alta similitud genética y cromosómica entre las distintas especies del género permite la obtención de híbridos viables, reforzando la idea de que algunas especies del género están evolutivamente activas, y pone de manifiesto las dificultades que esto ocasiona en el tratamiento taxonómico y la filogenia del grupo.
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Affiliation(s)
- María Laura Fontana
- Universidad Nacional del Nordeste, Argentina; Instituto Nacional de Tecnología Agropecuaria, Argentina
| | | | - Claudia Verónica Luna
- Universidad Nacional del Nordeste, Argentina; Instituto de Botánica del Nordeste, Argentina
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Evidences of local adaptation in quantitative traits in Prosopis alba (Leguminosae). Genetica 2014; 143:31-44. [PMID: 25523543 DOI: 10.1007/s10709-014-9810-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Accepted: 12/15/2014] [Indexed: 01/12/2023]
Abstract
Signals of selection on quantitative traits can be detected by the comparison between the genetic differentiation of molecular (neutral) markers and quantitative traits, by multivariate extensions of the same model and by the observation of the additive covariance among relatives. We studied, by three different tests, signals of occurrence of selection in Prosopis alba populations over 15 quantitative traits: three economically important life history traits: height, basal diameter and biomass, 11 leaf morphology traits that may be related with heat-tolerance and physiological responses and spine length that is very important from silvicultural purposes. We analyzed 172 G1-generation trees growing in a common garden belonging to 32 open pollinated families from eight sampling sites in Argentina. The multivariate phenotypes differ significantly among origins, and the highest differentiation corresponded to foliar traits. Molecular genetic markers (SSR) exhibited significant differentiation and allowed us to provide convincing evidence that natural selection is responsible for the patterns of morphological differentiation. The heterogeneous selection over phenotypic traits observed suggested different optima in each population and has important implications for gene resource management. The results suggest that the adaptive significance of traits should be considered together with population provenance in breeding program as a crucial point prior to any selecting program, especially in Prosopis where the first steps are under development.
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Sherry M, Smith S, Patel A, Harris P, Hand P, Trenchard L, Henderson J. RAPD and microsatellite transferability studies in selected species of Prosopis (section Algarobia) with emphasis on Prosopis juliflora and P. pallida. J Genet 2012; 90:251-64. [PMID: 21869473 DOI: 10.1007/s12041-011-0068-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The genus Prosopis (Leguminosae, Mimosoideae), comprises 44 species widely distributed in arid and semi-arid zones. Prosopis pallida (Humb. and Bonpl. ex Willd.) Kunth and P. juliflora (Sw.) DC. are the two species that are truly tropical apart from P. africana, which is native to tropical Africa (Pasiecznik et al. 2004), and they have been introduced widely beyond their native ranges. However, taxonomic confusion within the genus has hampered exploitation and better management of the species. The present study focusses primarily on evaluating the genetic relationship between Prosopis species from the section Algarobia, containing most species of economic importance, though P. tamarugo from section Strombocarpa is also included for comparison. In total, 12 Prosopis species and a putative P. pallida x P. chilensis hybrid were assessed for their genetic relationships based on RAPD markers and microsatellite transferability. The results show that P. pallida and P. juliflora are not closely related despite some morphological similarity. Evidence also agrees with previous studies which suggest that the grouping of series in section Algarobia is artificial.
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Affiliation(s)
- Minu Sherry
- Faculty of Health and Life Sciences, Coventry University, Priory Street, Coventry CV1 5FB, UK.
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ASCHERO VALERIA, VÃZQUEZ DIEGOP. Habitat protection, cattle grazing and density-dependent reproduction in a desert tree. AUSTRAL ECOL 2009. [DOI: 10.1111/j.1442-9993.2009.01997.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Bessega C, Saidman BO, Darquier MR, Ewens M, Sánchez L, Rozenberg P, Vilardi JC. Consistency between marker- and genealogy-based heritability estimates in an experimental stand of Prosopis alba (Leguminosae). AMERICAN JOURNAL OF BOTANY 2009; 96:458-465. [PMID: 21628201 DOI: 10.3732/ajb.0800074] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Prosopis represents a valuable forest resource in arid and semiarid regions. Management of promising species requires information about genetic parameters, mainly the heritability (h(2)) of quantitative profitable traits. This parameter is traditionally estimated from progeny tests or half-sib analysis conducted in experimental stands. Such an approach estimates h(2) from the ratio of between-family/total phenotypic variance. These analyses are difficult to apply to natural populations of species with a long life cycle, overlapping generations, and a mixed mating system, without genealogical information. A promising alternative is the use of molecular marker information to infer relatedness between individuals and to estimate h(2) from the regression of phenotypic similarity on inferred relatedness. In the current study we compared h(2) of 13 quantitative traits estimated by these two methods in an experimental stand of P. alba, where genealogical information was available. We inferred pairwise relatedness by Ritland's method using six microsatellite loci. Relatedness and heritability estimates from molecular information were highly correlated to the values obtained from genealogical data. Although Ritland's method yields lower h(2) estimates and tends to overestimate genetic correlations between traits, this approach is useful to predict the expected relative gain of different quantitative traits under selection without genealogical information.
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Affiliation(s)
- Cecilia Bessega
- Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, 1428, Buenos Aires, Argentina
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16
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Ferreyra LI, Bessega C, Vilardi JC, Saidman BO. Consistency of population genetics parameters estimated from isozyme and RAPDs dataset in species of genus Prosopis (Leguminosae, Mimosoideae). Genetica 2007; 131:217-30. [PMID: 17242965 DOI: 10.1007/s10709-006-9132-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2006] [Accepted: 12/07/2006] [Indexed: 11/30/2022]
Abstract
Genetic variability, population structure and differentiation among 17 populations of 5 species and 2 natural interspecific hybrids of section Algarobia of genus Prosopis were analyzed from data of 23 isozyme and 28 RAPD loci. Both markers indicated that the studied populations are highly variable. P. alba populations in average showed lower values of genetic variability estimates from isozyme data, but this trend was not observed for RAPD markers. The hierarchical analyses of the distribution of genetic variability showed that the highest proportion of variation occurred within populations, the differentiation among species was intermediate and the lowest component was observed among populations within species. The consistency between results from both dataset implies that they are not biased and reflect the actual genetic structure of the populations analyzed. The matrices of Euclidean distances obtained from the two sets of markers were highly correlated according to Mantel test. In both cases the corresponding phenogram and MDS plot tended to cluster conspecific populations while hybrid populations were not intermediate between putative parents. Some disagreements between isozyme and RAPD phenograms were observed mainly in the affinities of hybrid populations. Such inconsistencies might result from reticular rather than dichotomic evolutionary relationships. The phenetic associations retrieved gave no support to the division of the section Algarobia into series.
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Affiliation(s)
- Laura Inés Ferreyra
- Laboratorio de Genética, Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina.
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Bessega C, Saidman BO, Vilardi JC. Genetic relationships among American species of Prosopis (Leguminosae) based on enzyme markers. Genet Mol Biol 2005. [DOI: 10.1590/s1415-47572005000200018] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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