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Cueva DF, Zug R, Pozo MJ, Molina S, Cisneros R, Bustamante MR, Torres MDL. Evidence of population genetic structure in Ecuadorian Andean bears. Sci Rep 2024; 14:2834. [PMID: 38310153 PMCID: PMC10838292 DOI: 10.1038/s41598-024-53003-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 01/25/2024] [Indexed: 02/05/2024] Open
Abstract
Wildlife conservation in Andean countries is a global priority because of the high levels of biodiversity and endemism. Historically, these countries have had limited resources to monitor wildlife (e.g., through genetic tools) and establish conservation programs. Focusing on the study and emblematic use of a few charismatic species has been a strategic approach to direct efforts for conservation and development planning. Consequently, the Andean bear is a flagship and umbrella species for highly biodiverse Andean countries like Ecuador. The few studies exploring the population genetics of this species have concluded that it has low genetic diversity and few units for conservation as populations appear to be well connected. However, these results might be attributed to ascertainment bias as studies have been performed with heterologous molecular markers. Here, using both mtDNA sequences and species-specific microsatellite markers, we show that Andean bears in Ecuador have population structure. Additionally, we found through the study of three Ecuadorian populations that the species might have a higher genetic diversity than we previously thought. These results could support the revision of research priorities, conservation, and planning strategies to improve connectivity for this species which occurs in crucial biodiversity hotspots.
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Affiliation(s)
- Dario F Cueva
- Laboratorio de Biotecnología Vegetal, Universidad San Francisco de Quito USFQ, Diego de Robles y Via Interoceanica s/n, Quito, 170157, Ecuador
| | - Rebecca Zug
- Laboratorio de Carnívoros, Universidad San Francisco de Quito USFQ, Diego de Robles y Vía Interoceanica s/n, Quito, 170157, Ecuador
| | - María José Pozo
- Laboratorio de Biotecnología Vegetal, Universidad San Francisco de Quito USFQ, Diego de Robles y Via Interoceanica s/n, Quito, 170157, Ecuador
| | - Santiago Molina
- Laboratorio de Carnívoros, Universidad San Francisco de Quito USFQ, Diego de Robles y Vía Interoceanica s/n, Quito, 170157, Ecuador
- Fundación Zoológica del Ecuador, Pircapamaba s/n y Rumichupa, Guayllabamba, Quito, Ecuador
| | - Rodrigo Cisneros
- Departamento de Ciencias Biológicas y Agropecuarias, Universidad Técnica Particular de Loja, San Cayetano Alto, C/París s/n., 1101608, Loja, Ecuador
| | - Martín R Bustamante
- Fundación Zoológica del Ecuador, Pircapamaba s/n y Rumichupa, Guayllabamba, Quito, Ecuador
| | - María de Lourdes Torres
- Laboratorio de Biotecnología Vegetal, Universidad San Francisco de Quito USFQ, Diego de Robles y Via Interoceanica s/n, Quito, 170157, Ecuador.
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Cerca J, Cotoras DD, Bieker VC, De-Kayne R, Vargas P, Fernández-Mazuecos M, López-Delgado J, White O, Stervander M, Geneva AJ, Guevara Andino JE, Meier JI, Roeble L, Brée B, Patiño J, Guayasamin JM, Torres MDL, Valdebenito H, Castañeda MDR, Chaves JA, Díaz PJ, Valente L, Knope ML, Price JP, Rieseberg LH, Baldwin BG, Emerson BC, Rivas-Torres G, Gillespie R, Martin MD. Evolutionary genomics of oceanic island radiations. Trends Ecol Evol 2023:S0169-5347(23)00032-0. [PMID: 36870806 DOI: 10.1016/j.tree.2023.02.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 01/26/2023] [Accepted: 02/02/2023] [Indexed: 03/06/2023]
Abstract
A recurring feature of oceanic archipelagos is the presence of adaptive radiations that generate endemic, species-rich clades that can offer outstanding insight into the links between ecology and evolution. Recent developments in evolutionary genomics have contributed towards solving long-standing questions at this interface. Using a comprehensive literature search, we identify studies spanning 19 oceanic archipelagos and 110 putative adaptive radiations, but find that most of these radiations have not yet been investigated from an evolutionary genomics perspective. Our review reveals different gaps in knowledge related to the lack of implementation of genomic approaches, as well as undersampled taxonomic and geographic areas. Filling those gaps with the required data will help to deepen our understanding of adaptation, speciation, and other evolutionary processes.
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Affiliation(s)
- José Cerca
- Department of Natural History, NTNU University Museum, Norwegian University of Science and Technology (NTNU), Trondheim, Norway; Centre for Ecological and Evolutionary Synthesis (CEES), Department of Biosciences, University of Oslo, Oslo, Norway.
| | - Darko D Cotoras
- Department of Terrestrial Zoology, Senckenberg Research Institute and Natural History Museum, Senckenberganlage 25, 60325 Frankfurt am Main, Germany; Department of Entomology, California Academy of Sciences, 55 Music Concourse Drive, San Francisco, CA 94118, USA
| | - Vanessa C Bieker
- Department of Natural History, NTNU University Museum, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Rishi De-Kayne
- Institute of Evolutionary Biology, University of Edinburgh, Edinburgh EH9 3FL, UK
| | - Pablo Vargas
- Biodiversity and Conservation, Real Jardín Botánico, 28014 Madrid, Spain
| | - Mario Fernández-Mazuecos
- Departamento de Biología (Botánica), Facultad de Ciencias, Universidad Autónoma de Madrid, Calle Darwin 2, 28049 Madrid, Spain; Centro de Investigación en Biodiversidad y Cambio Global, Universidad Autónoma de Madrid (CIBC-UAM), Calle Darwin 2, 28049 Madrid, Spain
| | - Julia López-Delgado
- School of Biology, Faculty of Biological Sciences, University of Leeds, Leeds, UK
| | - Oliver White
- Department of Life Sciences, The Natural History Museum, Cromwell Road, London, SW7 5BD, UK
| | - Martin Stervander
- Bird Group, Natural History Museum, Akeman Street, Tring, Hertfordshire HP23 6AP, UK
| | - Anthony J Geneva
- Department of Biology and Center for Computational and Integrative Biology, Rutgers University-Camden, Camden, NJ, USA
| | - Juan Ernesto Guevara Andino
- Grupo de Investigación en Biodiversidad Medio Ambiente y Salud (BIOMAS), Universidad de las Américas, Quito, Ecuador
| | - Joana Isabel Meier
- Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK
| | - Lizzie Roeble
- Naturalis Biodiversity Center, Darwinweg 2, 2333 CR Leiden, The Netherlands; Groningen Institute for Evolutionary Life Sciences, University of Groningen, Box 11103, 9700, 5 CC Groningen, The Netherlands
| | - Baptiste Brée
- Université de Pau et des Pays de l'Adour (UPPA), Energy Environment Solutions (E2S), Centre National de la Recherche Scientifique (CNRS), Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux (IPREM), 64000 Pau, France
| | - Jairo Patiño
- Island Ecology and Evolution Research Group, Instituto de Productos Naturales y Agrobiología (IPNA-CSIC), Calle Astrofísico Francisco Sánchez 3, 38206 La Laguna, Tenerife, Canary Islands, 38206, Spain
| | - Juan M Guayasamin
- Laboratorio de Biología Evolutiva, Instituto Biósfera, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito (USFQ), Calle Diego de Robles y Avenida Pampite, Cumbayá, 170901 Quito, Ecuador; Galapagos Science Center, Universidad San Francisco de Quito (USFQ) and University of North Carolina (UNC) at Chapel Hill, San Cristobal, Galapagos, Ecuador
| | - María de Lourdes Torres
- Laboratorio de Biotecnología Vegetal, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito (USFQ), Calle Diego de Robles y Avenida Pampite, Cumbayá, Quito, Ecuador; Galapagos Science Center, Universidad San Francisco de Quito (USFQ) and University of North Carolina (UNC) at Chapel Hill, San Cristobal, Galapagos, Ecuador
| | - Hugo Valdebenito
- Galapagos Science Center, Universidad San Francisco de Quito (USFQ) and University of North Carolina (UNC) at Chapel Hill, San Cristobal, Galapagos, Ecuador; Herbarium of Economic Botany of Ecuador (Herabario QUSF), Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito (USFQ), Calle Diego de Robles y Avenida Pampite, Cumbayá, Quito, Ecuador
| | | | - Jaime A Chaves
- Department of Biology, San Francisco State University, San Francisco, CA 94132, USA; Laboratorio de Biología Evolutiva, Instituto Biósfera, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito (USFQ), Calle Diego de Robles y Avenida Pampite, Cumbayá, 170901 Quito, Ecuador
| | - Patricia Jaramillo Díaz
- Estación Científica Charles Darwin, Fundación Charles Darwin, Santa Cruz, Galápagos, Ecuador; Department of Botany and Plant Physiology, University of Málaga, Málaga, Spain
| | - Luis Valente
- Naturalis Biodiversity Center, Darwinweg 2, 2333 CR Leiden, The Netherlands; Groningen Institute for Evolutionary Life Sciences, University of Groningen, Box 11103, 9700, 5 CC Groningen, The Netherlands
| | - Matthew L Knope
- Department of Biology, University of Hawai'i at Hilo, 200 West Kawili Street, Hilo, 96720, HI, USA
| | - Jonathan P Price
- Department of Biology, University of Hawai'i at Hilo, 200 West Kawili Street, Hilo, 96720, HI, USA
| | - Loren H Rieseberg
- Department of Botany and Biodiversity Research Centre, University of British Columbia, Vancouver, BC, Canada
| | - Bruce G Baldwin
- Jepson Herbarium and Department of Integrative Biology, 1001 Valley Life Sciences Building 2465, University of California, Berkeley, CA 94720-2465, USA
| | - Brent C Emerson
- Island Ecology and Evolution Research Group, Instituto de Productos Naturales y Agrobiología (IPNA-CSIC), La Laguna, Spain
| | - Gonzalo Rivas-Torres
- Estación Científica Charles Darwin, Fundación Charles Darwin, Santa Cruz, Galápagos, Ecuador; Estación de Biodiversidad Tiputini, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito (USFQ), Quito, Ecuador
| | - Rosemary Gillespie
- Department of Environmental Science, Policy and Management, University of California, Berkeley, Berkeley, CA, USA
| | - Michael D Martin
- Department of Natural History, NTNU University Museum, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
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Guadalupe JJ, Rojas MI, Pozo G, Erazo-Garcia MP, Vega-Polo P, Terán-Velástegui M, Rohwer F, Torres MDL. Presence of SARS-CoV-2 RNA on Surfaces of Public Places and a Transportation System Located in a Densely Populated Urban Area in South America. Viruses 2021; 14:v14010019. [PMID: 35062223 PMCID: PMC8780916 DOI: 10.3390/v14010019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/12/2021] [Accepted: 12/21/2021] [Indexed: 12/12/2022] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a highly transmissible RNA virus that causes COVID-19. Being aware of the presence of the virus on different types of surfaces and in different environments, and having a protocol for its detection, is important to understand the dynamics of the virus and its shedding patterns. In Ecuador, the detection of viral RNA in urban environmental samples has not been a priority. The present study analyzed samples from two densely populated neighborhoods and one public transportation system in Quito, Ecuador. Viral RNA presence was assessed using RT-LAMP. Twenty-eight out of 300 surfaces tested positive for SARS-CoV-2 RNA (9.33%). Frequently touched surfaces, especially in indoor spaces and on public transportation, were most likely to be positive for viral RNA. Positivity rate association for the two neighborhoods and for the surface type was not found. This study found viral RNA presence on urban surfaces; this information provides an insight into viral dissemination dynamics. Monitoring environmental SARS-CoV-2 could support the public health prevention strategies in Quito, Ecuador.
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Affiliation(s)
- Juan José Guadalupe
- Laboratorio de Biotecnología Vegetal, Universidad San Francisco de Quito (USFQ), Diego de Robles y Via Interoceanica s/n, Quito 170157, Ecuador; (J.J.G.); (G.P.); (M.P.E.-G.); (P.V.-P.); (M.T.-V.)
| | - María I. Rojas
- Biology Department, San Diego State University, San Diego, CA 92182, USA; (M.I.R.); (F.R.)
- Viral Information Institute, San Diego State University, San Diego, CA 92182, USA
| | - Gabriela Pozo
- Laboratorio de Biotecnología Vegetal, Universidad San Francisco de Quito (USFQ), Diego de Robles y Via Interoceanica s/n, Quito 170157, Ecuador; (J.J.G.); (G.P.); (M.P.E.-G.); (P.V.-P.); (M.T.-V.)
| | - Maria P. Erazo-Garcia
- Laboratorio de Biotecnología Vegetal, Universidad San Francisco de Quito (USFQ), Diego de Robles y Via Interoceanica s/n, Quito 170157, Ecuador; (J.J.G.); (G.P.); (M.P.E.-G.); (P.V.-P.); (M.T.-V.)
| | - Pamela Vega-Polo
- Laboratorio de Biotecnología Vegetal, Universidad San Francisco de Quito (USFQ), Diego de Robles y Via Interoceanica s/n, Quito 170157, Ecuador; (J.J.G.); (G.P.); (M.P.E.-G.); (P.V.-P.); (M.T.-V.)
| | - Martín Terán-Velástegui
- Laboratorio de Biotecnología Vegetal, Universidad San Francisco de Quito (USFQ), Diego de Robles y Via Interoceanica s/n, Quito 170157, Ecuador; (J.J.G.); (G.P.); (M.P.E.-G.); (P.V.-P.); (M.T.-V.)
| | - Forest Rohwer
- Biology Department, San Diego State University, San Diego, CA 92182, USA; (M.I.R.); (F.R.)
- Viral Information Institute, San Diego State University, San Diego, CA 92182, USA
| | - María de Lourdes Torres
- Laboratorio de Biotecnología Vegetal, Universidad San Francisco de Quito (USFQ), Diego de Robles y Via Interoceanica s/n, Quito 170157, Ecuador; (J.J.G.); (G.P.); (M.P.E.-G.); (P.V.-P.); (M.T.-V.)
- Correspondence:
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Gibson MJ, Torres MDL, Brandvain Y, Moyle LC. Introgression shapes fruit color convergence in invasive Galápagos tomato. eLife 2021; 10:64165. [PMID: 34165082 PMCID: PMC8294854 DOI: 10.7554/elife.64165] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 06/23/2021] [Indexed: 12/17/2022] Open
Abstract
Invasive species represent one of the foremost risks to global biodiversity. Here, we use population genomics to evaluate the history and consequences of an invasion of wild tomato-Solanum pimpinellifolium-onto the Galápagos Islands from continental South America. Using >300 archipelago and mainland collections, we infer this invasion was recent and largely the result of a single event from central Ecuador. Patterns of ancestry within the genomes of invasive plants also reveal post-colonization hybridization and introgression between S. pimpinellifolium and the closely related Galápagos endemic Solanum cheesmaniae. Of admixed invasive individuals, those that carry endemic alleles at one of two different carotenoid biosynthesis loci also have orange fruits-characteristic of the endemic species-instead of typical red S. pimpinellifolium fruits. We infer that introgression of two independent fruit color loci explains this observed trait convergence, suggesting that selection has favored repeated transitions of red to orange fruits on the Galápagos.
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Affiliation(s)
- Matthew Js Gibson
- Department of Biology, Indiana University, Bloomington, United States
| | - María de Lourdes Torres
- Universidad San Francisco de Quito (USFQ). Colegio de Ciencias Biológicas y Ambientales, Laboratorio de Biotecnología Vegetal. Campus Cumbayá, Quito, Ecuador.,Galapagos Science Center, Universidad San Francisco de Quito and University of North Carolina at Chapel Hill, Galapagos, Ecuador
| | - Yaniv Brandvain
- Department of Plant Biology, University of Minnesota-Twin Cities, St. Paul, United States
| | - Leonie C Moyle
- Department of Biology, Indiana University, Bloomington, United States
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Gordillo-Romero M, Correa-Baus L, Baquero-Méndez V, Torres MDL, Vintimilla C, Tobar J, Torres AF. Gametophytic self-incompatibility in Andean capuli ( Prunus serotina subsp. capuli): allelic diversity at the S-RNase locus influences normal pollen-tube formation during fertilization. PeerJ 2020; 8:e9597. [PMID: 32944417 PMCID: PMC7469932 DOI: 10.7717/peerj.9597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 07/02/2020] [Indexed: 11/20/2022] Open
Abstract
Capuli (Prunus serotina subsp. capuli) is a tree species that is widely distributed in the northern Andes. In Prunus, fruit set and productivity appears to be limited by gametophytic self-incompatibility (GSI) which is controlled by the S-Locus. For the first time, this research reveals the molecular structure of the capuli S-RNase (a proxy for S-Locus diversity) and documents how S-Locus diversity influences GSI in the species. To this end, the capuli S-RNase gene was amplified and sequenced in order to design a CAPS (Cleaved Amplified Polymorphic Sequence) marker system that could unequivocally detect S-alleles by targeting the highly polymorphic C2-C3 S-RNase intra-genic region. The devised system proved highly effective. When used to assess S-Locus diversity in 15 P. serotina accessions, it could identify 18 S-alleles; 7 more than when using standard methodologies for the identification of S-alleles in Prunus species. CAPS marker information was subsequently used to formulate experimental crosses between compatible and incompatible individuals (as defined by their S-allelic identity). Crosses between heterozygote individuals with contrasting S-alleles resulted in normal pollen tube formation and growth. In crosses between individuals with exactly similar S-allele identities, pollen tubes often showed morphological alterations and arrested development, but for some (suspected) incompatible crosses, pollen tubes could reach the ovary. The latter indicates the possibility of a genotype-specific breakdown of GSI in the species. Overall, this supports the notion that S-Locus diversity influences the reproductive patterns of Andean capuli and that it should be considered in the design of orchards and the production of basic propagation materials.
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Affiliation(s)
- Milton Gordillo-Romero
- Laboratorio de Biotecnología Vegetal, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito, Quito, Pichincha, Ecuador
| | - Lisa Correa-Baus
- Laboratorio de Biotecnología Vegetal, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito, Quito, Pichincha, Ecuador
| | - Verónica Baquero-Méndez
- Laboratorio de Biotecnología Vegetal, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito, Quito, Pichincha, Ecuador
| | - María de Lourdes Torres
- Laboratorio de Biotecnología Vegetal, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito, Quito, Pichincha, Ecuador
| | - Carlos Vintimilla
- Laboratorio de Biotecnología Vegetal, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito, Quito, Pichincha, Ecuador
| | - Jose Tobar
- Laboratorio de Biotecnología Vegetal, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito, Quito, Pichincha, Ecuador
| | - Andrés F Torres
- Laboratorio de Biotecnología Vegetal, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito, Quito, Pichincha, Ecuador
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Urquía D, Gutierrez B, Pozo G, Pozo MJ, Espín A, Torres MDL. Psidium guajava in the Galapagos Islands: Population genetics and history of an invasive species. PLoS One 2019; 14:e0203737. [PMID: 30865637 PMCID: PMC6415804 DOI: 10.1371/journal.pone.0203737] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 02/07/2019] [Indexed: 11/30/2022] Open
Abstract
The threat of invasive plant species in island populations prompts the need to better understand their population genetics and dynamics. In the Galapagos islands, this is exemplified by the introduced guava (Psidium guajava), considered one of the greatest threats to the local biodiversity due to its effective spread in the archipelago and its ability to outcompete endemic species. To better understand its history and genetics, we analyzed individuals from three inhabited islands in the Galapagos archipelago with 11 SSR markers. Our results reveal similar genetic diversity between islands, and the populations appear to be distinct: the islands of San Cristobal and Isabela are genetically different while the population of Santa Cruz is a mixture from both. Additional evidence for genetic bottlenecks and the inference of introduction events suggests an original introduction of the species in San Cristobal, from where it was later introduced to Isabela, and finally into Santa Cruz. Alternatively, a second introduction in Isabela might have occurred. These results are contrasted with the historical record, providing a first overview of the history of P. guajava in the Galapagos islands and its current population dynamics.
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Affiliation(s)
- Diego Urquía
- Universidad San Francisco de Quito (USFQ), Colegio de Ciencias Biológicas y Ambientales, Laboratorio de Biotecnología Vegetal, Campus Cumbayá, Quito, Ecuador
| | - Bernardo Gutierrez
- Universidad San Francisco de Quito (USFQ), Colegio de Ciencias Biológicas y Ambientales, Laboratorio de Biotecnología Vegetal, Campus Cumbayá, Quito, Ecuador
- Department of Zoology, University of Oxford, South Parks Road, Oxford, United Kingdom
| | - Gabriela Pozo
- Universidad San Francisco de Quito (USFQ), Colegio de Ciencias Biológicas y Ambientales, Laboratorio de Biotecnología Vegetal, Campus Cumbayá, Quito, Ecuador
| | - María José Pozo
- Universidad San Francisco de Quito (USFQ), Colegio de Ciencias Biológicas y Ambientales, Laboratorio de Biotecnología Vegetal, Campus Cumbayá, Quito, Ecuador
| | - Analía Espín
- Universidad San Francisco de Quito (USFQ), Colegio de Ciencias Biológicas y Ambientales, Laboratorio de Biotecnología Vegetal, Campus Cumbayá, Quito, Ecuador
| | - María de Lourdes Torres
- Universidad San Francisco de Quito (USFQ), Colegio de Ciencias Biológicas y Ambientales, Laboratorio de Biotecnología Vegetal, Campus Cumbayá, Quito, Ecuador
- Galapagos Science Center, Universidad San Francisco de Quito and University of North Carolina at Chapel Hill, San Cristobal, Galapagos, Ecuador
- * E-mail:
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Gutiérrez B, Cobo MM, Orellana M, Vega J, Arahana V, Jaramillo V, Torres MDL. Micropropagation of Solanum quitoense var. quitoense by apical bud, petiole and hypocotyl culture. Plant Biotechnol (Tokyo) 2019; 36:91-97. [PMID: 31768109 PMCID: PMC6847780 DOI: 10.5511/plantbiotechnology.19.0317a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 03/17/2019] [Indexed: 06/10/2023]
Abstract
The development of in vitro propagation methods can improve the current commercial use and conservation of plants like naranjilla (Solanum quitoense), a distinctive Andean crop and key emerging agricultural product. In the present study, we report in vitro culture protocols for naranjilla apical buds, hypocotyls and petioles. In apical bud culture, MS medium supplemented with 0.10 mg l-1 1-naphtaleneacetic acid (NAA) produced longer plantlets with greater number of leaves. Hypocotyl culture yielded higher number of shoots when using older explants in MS medium supplemented with different combinations of NAA, 6-benzylaminopurine (BAP) and gibberellic acid (GA3). Petiole culture produced a significantly higher number of shoots per explant, with more abundant and bigger leaves, when using MS medium supplemented with 0.02 mg l-1 NAA, 4.50 mg l-1 BAP and 1.00 mg l-1 GA3. A factorial analysis reveals that the interaction between GA3 and NAA/BAP plays an important role in shoot regeneration. These results provide new tools for the in vitro regeneration of naranjilla plants, improving on previously reported protocols for this species by using alternative explant types and regeneration protocols.
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Affiliation(s)
- Bernardo Gutiérrez
- Universidad San Francisco de Quito USFQ, Laboratorio de Biotecnología Vegetal, Colegio de Ciencias Biológicas y Ambientales COCIBA, Cumbayá-Ecuador
| | - María Mercedes Cobo
- Universidad San Francisco de Quito USFQ, Laboratorio de Biotecnología Vegetal, Colegio de Ciencias Biológicas y Ambientales COCIBA, Cumbayá-Ecuador
| | - Miguel Orellana
- Universidad San Francisco de Quito USFQ, Laboratorio de Biotecnología Vegetal, Colegio de Ciencias Biológicas y Ambientales COCIBA, Cumbayá-Ecuador
| | - Joely Vega
- Universidad San Francisco de Quito USFQ, Laboratorio de Biotecnología Vegetal, Colegio de Ciencias Biológicas y Ambientales COCIBA, Cumbayá-Ecuador
| | - Venancio Arahana
- Universidad San Francisco de Quito USFQ, Laboratorio de Biotecnología Vegetal, Colegio de Ciencias Biológicas y Ambientales COCIBA, Cumbayá-Ecuador
| | - Viviana Jaramillo
- Universidad San Francisco de Quito USFQ, Laboratorio de Biotecnología Vegetal, Colegio de Ciencias Biológicas y Ambientales COCIBA, Cumbayá-Ecuador
- Wageningen UR Plant Breeding, Wageningen University, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
| | - María de Lourdes Torres
- Universidad San Francisco de Quito USFQ, Laboratorio de Biotecnología Vegetal, Colegio de Ciencias Biológicas y Ambientales COCIBA, Cumbayá-Ecuador
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Guadalupe JJ, Gutiérrez B, Intriago-Baldeón DP, Arahana V, Tobar J, Torres AF, Torres MDL. Genetic diversity and distribution patterns of Ecuadorian capuli (Prunus serotina). BIOCHEM SYST ECOL 2015. [DOI: 10.1016/j.bse.2015.04.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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