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Klimova A, Gutíerrez‐Rivera J, Ortega‐Rubio A, Eguiarte LE. Population genomics and distribution modeling revealed the history and suggested a possible future of the endemic Agave aurea (Asparagaceae) complex in the Baja California Peninsula. Ecol Evol 2024; 14:e70027. [PMID: 39050658 PMCID: PMC11267983 DOI: 10.1002/ece3.70027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 06/14/2024] [Accepted: 07/07/2024] [Indexed: 07/27/2024] Open
Abstract
Agaves are an outstanding arid-adapted group of species that provide a unique chance to study the influence of multiple potential factors (i.e., geological and ecological) on plant population structure and diversification in the heterogeneous environment of the Baja California Peninsula. However, relatively little is known about the phylogeography of the endemic agave species of this region. Herein, we used over 10,000 single-nucleotide polymorphisms (SNPs) and spatial data from the Agave aurea species complex (i.e., A. aurea ssp. aurea, A. aurea ssp. promontorii, and A. aurea var. capensis) to resolve genetic relationships within this complex and uncover fine-scale population structure, diversity patterns, and their potential underlying drivers. Analyses resolved low genetic structure within this complex, suggesting that A. aurea is more likely to represent several closely related populations than separate species or varieties/subspecies. We found that geographical and historical ecological characteristics-including precipitation, latitude, and past climatic fluctuations-have played an important role in the spatial distribution of diversity and structure in A. aurea. Finally, species distribution modeling results suggested that climate change will become critical in the extinction risk of A. aurea, with the northernmost population being particularly vulnerable. The low population genetic structure found in A. aurea is consistent with agave's life history, and it is probably related to continuity of distribution, relatively low habitat fragmentation, and dispersion by pollinators. Together, these findings have important implications for management and conservation programs in agave, such as creating and evaluating protected areas and translocating and augmentation of particular populations.
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Affiliation(s)
- Anastasia Klimova
- Centro de Investigaciones Biológicas del Noroeste S.C.La PazMexico
- Departamento de Ecología EvolutivaInstituto de Ecología, Universidad Nacional Autónoma de MéxicoCiudad de MéxicoMexico
| | | | | | - Luis E. Eguiarte
- Departamento de Ecología EvolutivaInstituto de Ecología, Universidad Nacional Autónoma de MéxicoCiudad de MéxicoMexico
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Alducin-Martínez C, Ruiz Mondragón KY, Jiménez-Barrón O, Aguirre-Planter E, Gasca-Pineda J, Eguiarte LE, Medellin RA. Uses, Knowledge and Extinction Risk Faced by Agave Species in Mexico. PLANTS (BASEL, SWITZERLAND) 2022; 12:124. [PMID: 36616253 PMCID: PMC9824392 DOI: 10.3390/plants12010124] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 11/22/2022] [Accepted: 11/30/2022] [Indexed: 06/17/2023]
Abstract
We compiled an updated database of all Agave species found in Mexico and analyzed it with specific criteria according to their biological parameters to evaluate the conservation and knowledge status of each species. Analyzing the present status of all Agave species not only provides crucial information for each species, but also helps determine which ones require special protection, especially those which are heavily used or cultivated for the production of distilled beverages. We conducted an extensive literature review search and compiled the conservation status of each species using mainstream criteria by IUCN. The information gaps in the database indicate a lack of knowledge and research regarding specific Agave species and it validates the need to conduct more studies on this genus. In total, 168 Agave species were included in our study, from which 89 are in the subgenus Agave and 79 in the subgenus Littaea. Agave lurida and A. nizandensis, in the subgenus Agave and Littaea, respectively, are severely endangered, due to their endemism, lack of knowledge about pollinators and floral visitors, and their endangered status according to the IUCN Red List. Some species are at risk due to the loss of genetic diversity resulting from production practices (i.e., Agave tequilana), and others because of excessive and unchecked overharvesting of wild plants, such as A. guadalajarana, A. victoriae-reginae, A. kristenii, and others. Given the huge economic and ecological importance of plants in the genus Agave, our review will be a milestone to ensure their future and continued provision of ecosystem services for humans, as well as encouraging further research in Agave species in an effort to enhance awareness of their conservation needs and sustainable use, and the implementation of eco-friendly practices in the species management.
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Affiliation(s)
- Cecilia Alducin-Martínez
- Escuela de Ciencias, Universidad de las Américas Puebla, Puebla 72810, Mexico
- Instituto de Ecología, Universidad Nacional Autónoma de Mexico, Mexico City 04510, Mexico
| | | | - Ofelia Jiménez-Barrón
- Instituto de Ecología, Universidad Nacional Autónoma de Mexico, Mexico City 04510, Mexico
| | - Erika Aguirre-Planter
- Instituto de Ecología, Universidad Nacional Autónoma de Mexico, Mexico City 04510, Mexico
| | - Jaime Gasca-Pineda
- Instituto de Ecología, Universidad Nacional Autónoma de Mexico, Mexico City 04510, Mexico
| | - Luis E. Eguiarte
- Instituto de Ecología, Universidad Nacional Autónoma de Mexico, Mexico City 04510, Mexico
| | - Rodrigo A. Medellin
- Instituto de Ecología, Universidad Nacional Autónoma de Mexico, Mexico City 04510, Mexico
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De la Rosa-Conroy L, Gasca-Pineda J, Bello-Bedoy R, Eguiarte LE, Arteaga MC. Genetic patterns and changes in availability of suitable habitat support a colonisation history of a North American perennial plant. PLANT BIOLOGY (STUTTGART, GERMANY) 2020; 22:233-242. [PMID: 31603263 DOI: 10.1111/plb.13053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 09/14/2019] [Indexed: 06/10/2023]
Abstract
Climatic fluctuations during the Pleistocene influenced the geographical distribution of plant species across the southern region of California. Following an integrative approach, we combined genetic data analysis with Environmental Niche Models (ENMs) to assess the historical range expansion of Yucca schidigera, a long-lived desert perennial native of the Baja California Peninsula. We genotyped 240 individuals with seven nuclear microsatellite to investigate genetic diversity distribution across 13 populations. Indeed, we used Environmental Niche Models to examine the changes on the distribution of suitable climatic conditions for this species during the LIG (~120 ka), LGM (~22 ka) and Mid Holocene (~6 ka). We detected high genetic diversity across Y. schidigera populations (AR = 9.94 ± 0.38 SE; Hexp = 0.791 ± 0.011 SE) with genetic variation decreasing significantly with latitude (allelic richness: R 2 = 0.38, P = 0.023; expected heterocigosity: R2 = 0.32, P = 0.042). We observed low, but significant genetic differentiation (FST = 0.0678; P < 0.001) which was consistent with the parapatric distribution of the three genetic groupings detected by the Bayesian clustering algorithm. The ENMs suggest that suitable habitat for this species increased since the LGM. Our results support a range expansion of Y. schidigera across northwestern Baja California during the late Quaternary. Genetic data suggest that colonization of the current distribution followed a southward directionality as suitable climatic conditions became widely available in this region. High genetic variation across our sample suggests large historic effective population sizes for this section of the geographical range.
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Affiliation(s)
- L De la Rosa-Conroy
- Departamento de Biología de la Conservación, Centro de Investigación Científica y de Educación Superior de Ensenada, Ensenada, Baja California, México
| | - J Gasca-Pineda
- Departamento de Biología de la Conservación, Centro de Investigación Científica y de Educación Superior de Ensenada, Ensenada, Baja California, México
| | - R Bello-Bedoy
- Facultad de Ciencias, Universidad Autónoma de Baja California, Ensenada, Baja California, México
| | - L E Eguiarte
- Departamento de Ecología Evolutiva, Instituto de Ecología, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - M C Arteaga
- Departamento de Biología de la Conservación, Centro de Investigación Científica y de Educación Superior de Ensenada, Ensenada, Baja California, México
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Ornelas JF, García JM, Ortiz-Rodriguez AE, Licona-Vera Y, Gándara E, Molina-Freaner F, Vásquez-Aguilar AA. Tracking Host Trees: The Phylogeography of Endemic Psittacanthus sonorae (Loranthaceae) Mistletoe in the Sonoran Desert. J Hered 2019; 110:229-246. [PMID: 30496534 DOI: 10.1093/jhered/esy065] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 11/26/2018] [Indexed: 01/29/2023] Open
Abstract
The host dependence of mistletoes suggests that they track the distributions of their hosts. However, the factors that determine the geographic distribution of mistletoes are not well understood. In this study, the phylogeography of Psittacanthus sonorae was reconstructed by sequencing one nuclear (ITS) and two plastid (trnL-F and atpB-rbcL) regions of 148 plants from populations separated by the Sea of Cortez. Divergence time and gene flow were estimated to gain insight into the historical demography and geographic structuring of genetic variation. We also described and mapped the spatial distribution of suitable habitat occupied by P. sonorae and its most common host Bursera microphylla in the Sonoran Desert, along with their responses to Quaternary climate fluctuations using environmental data and ecological niche modeling (ENM). We detected environmental and genetic differentiation between the peninsular and continental P. sonorae populations. Population divergence occurred during the Pleistocene, around the time of the Last Glacial Maximum. No signals of population growth were detected, with net gene flow moving from the continent to the peninsula. ENM models indicate decoupled responses by the mistletoe and its main host to past climate changes. For the Last Interglacial to the present, most models produce only partial areas of overlap on both the peninsula and the continent. Our results support a scenario of Late-Pleistocene isolation and divergence with asymmetrical gene flow between peninsular and continental P. sonorae populations. Continental populations migrated to the peninsula and the spatial isolation probably produced genetic differentiation under different environmental conditions.
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Affiliation(s)
- Juan Francisco Ornelas
- Departamento de Biología Evolutiva, Instituto de Ecología, A.C. (INECOL), Carretera antigua a Coatepec, El Haya, Xalapa, Veracruz, Mexico
| | - José Manuel García
- Departamento de Biología Evolutiva, Instituto de Ecología, A.C. (INECOL), Carretera antigua a Coatepec, El Haya, Xalapa, Veracruz, Mexico
| | - Andrés E Ortiz-Rodriguez
- Departamento de Biología Evolutiva, Instituto de Ecología, A.C. (INECOL), Carretera antigua a Coatepec, El Haya, Xalapa, Veracruz, Mexico.,Instituto de Investigaciones Forestales, Universidad Veracruzana, Xalapa, Veracruz, Mexico
| | - Yuyini Licona-Vera
- Departamento de Biología Evolutiva, Instituto de Ecología, A.C. (INECOL), Carretera antigua a Coatepec, El Haya, Xalapa, Veracruz, Mexico
| | - Etelvina Gándara
- Departamento de Biología Evolutiva, Instituto de Ecología, A.C. (INECOL), Carretera antigua a Coatepec, El Haya, Xalapa, Veracruz, Mexico.,Facultad de Ciencias Biológicas, Benemérita Universidad Autónoma de Puebla, Puebla, Puebla, Mexico
| | - Francisco Molina-Freaner
- Instituto de Ecología e Instituto de Geología, Universidad Nacional Autónoma de México (UNAM), Estación Regional del Noroeste, Hermosillo, Sonora, Mexico
| | - Antonio Acini Vásquez-Aguilar
- Departamento de Biología Evolutiva, Instituto de Ecología, A.C. (INECOL), Carretera antigua a Coatepec, El Haya, Xalapa, Veracruz, Mexico
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Trejo L, Alvarado-Cárdenas LO, Scheinvar E, Eguiarte LE. Population genetic analysis and bioclimatic modeling in Agave striata in the Chihuahuan Desert indicate higher genetic variation and lower differentiation in drier and more variable environments. AMERICAN JOURNAL OF BOTANY 2016; 103:1020-9. [PMID: 27257005 DOI: 10.3732/ajb.1500446] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Accepted: 02/24/2016] [Indexed: 05/11/2023]
Abstract
PREMISE OF THE STUDY Is there an association between bioclimatic variables and genetic variation within species? This question can be approached by a detailed analysis of population genetics parameters along environmental gradients in recently originated species (so genetic drift does not further obscure the patterns). The genus Agave, with more than 200 recent species encompassing a diversity of morphologies and distributional patterns, is an adequate system for such analyses. We studied Agave striata, a widely distributed species from the Chihuahuan Desert, with a distinctive iteroparous reproductive ecology and two recognized subspecies with clear morphological differences. We used population genetic analyses along with bioclimatic studies to understand the effect of environment on the genetic variation and differentiation of this species. METHODS We analyzed six populations of the subspecies A. striata subsp. striata, with a southern distribution, and six populations of A. striata subsp. falcata, with a northern distribution, using 48 ISSR loci and a total of 541 individuals (averaging 45 individuals per population). We assessed correlations between population genetics parameters (the levels of genetic variation and differentiation) and the bioclimatic variables of each population. We modeled each subspecies distribution and used linear correlations and multifactorial analysis of variance. KEY RESULTS Genetic variation (measured as expected heterozygosity) increased at higher latitudes. Higher levels of genetic variation in populations were associated with a higher variation in environmental temperature and lower precipitation. Stronger population differentiation was associated with wetter and more variable precipitation in the southern distribution of the species. The two subspecies have genetic differences, which coincide with their climatic differences and potential distributions. CONCLUSIONS Differences in genetic variation among populations and the genetic differentiation between A. striata subsp. striata and A. striata subsp. falcata is correlated with differences in environmental climatic variables along their distribution. We found two distinct gene pools that suggest active differentiation and perhaps incipient speciation. The detected association between genetic variation and environment variables indicates that climatic variables are playing an important role in the differentiation of A. striata.
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Affiliation(s)
- Laura Trejo
- Laboratorio Regional de Biodiversidad y Cultivo de Tejidos Vegetales, Instituto de Biología, Universidad Nacional Autónoma de México, sede Tlaxcala, Ex Fábrica San Manuel, Santa Cruz Tlaxcala, Tlaxcala 90640 México
| | - Leonardo O Alvarado-Cárdenas
- Laboratorio de Plantas Vasculares, Departamento de Biología Comparada, Facultad de Ciencias, Universidad Nacional Autónoma de México, Apartado Postal 70-399 04510 Mexico, D.F. Mexico
| | - Enrique Scheinvar
- Departamento de Ecología Evolutiva, Instituto de Ecología, Universidad Nacional Autónoma de México, Tercer Circuito s/n de Ciudad Universitaria, México D.F. 04510 Mexico
| | - Luis E Eguiarte
- Departamento de Ecología Evolutiva, Instituto de Ecología, Universidad Nacional Autónoma de México, Tercer Circuito s/n de Ciudad Universitaria, México D.F. 04510 Mexico
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Almaraz-Abarca N, Delgado-Alvarado EA, Torres-Morán MI, Herrera-Corral J, Ávila-Reyes JA, Naranjo-Jiménez N, Uribe-Soto JN. Genetic Variability in Natural Populations of Agave durangensis(Agavaceae) Revealed by Morphological and Molecular Traits. SOUTHWEST NAT 2013. [DOI: 10.1894/0038-4909-58.3.314] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Genómica de Poblaciones: Nada en Evolución va a tener sentido si no es a la luz de la Genómica, y nada en Genómica tendrá sentido si no es a la luz de la Evolución. TIP REVISTA ESPECIALIZADA EN CIENCIAS QUÍMICO-BIOLÓGICAS 2013. [DOI: 10.1016/s1405-888x(13)72077-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Hammad I, Qari SH. Genetic diversity among Zygophyllum (Zygophyllaceae) populations based on RAPD analysis. GENETICS AND MOLECULAR RESEARCH 2010; 9:2412-20. [PMID: 21161890 DOI: 10.4238/vol9-4gmr1144] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Zygophyllum species are succulent plants that are drought resistant and/or salt tolerant, growing under severe, dry climatic conditions. Despite their importance and abundance in the Mediterranean and Middle East regions, there is little information concerning molecular variations among species of this genus. Genetic diversity was assessed, using RAPD primers, of 12 populations of Z. coccineum, Z. album and Z. aegyptium collected from various locations in Egypt and Saudi Arabia. Yong leaves were used for DNA extraction. Genetic distances were calculated using Nei's method. A dendrogram was constructed based on the similarity data matrix by unweighted pair group method using arithmetic averages cluster analysis. Analysis with RAPD markers revealed genetic variation between and within populations of Zygophyllum. Zygophyllum coccineum showed higher levels of genetic variation and more unique alleles than the other species.
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Affiliation(s)
- I Hammad
- Department of Microbiology and Botany, Faculty of Science, Helwan University, Egypt.
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Koukou K, Pavlikaki H, Kilias G, Werren JH, Bourtzis K, Alahiotis SN. INFLUENCE OF ANTIBIOTIC TREATMENT AND WOLBACHIA CURING ON SEXUAL ISOLATION AMONG DROSOPHILA MELANOGASTER CAGE POPULATIONS. Evolution 2006. [DOI: 10.1111/j.0014-3820.2006.tb01084.x] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Koukou K, Pavlikaki H, Kilias G, Werren JH, Bourtzis K, Alahiotis SN. INFLUENCE OF ANTIBIOTIC TREATMENT AND WOLBACHIA CURING ON SEXUAL ISOLATION AMONG DROSOPHILA MELANOGASTER CAGE POPULATIONS. Evolution 2006. [DOI: 10.1554/05-374.1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Telschow A, Hammerstein P, Werren JH. THE EFFECT OF WOLBACHIA VERSUS GENETIC INCOMPATIBILITIES ON REINFORCEMENT AND SPECIATION. Evolution 2005. [DOI: 10.1554/05-034.1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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