https://repositorio-socioecologia.conahcyt.mx/jspui/handle/1000/194 Thu, 09 Apr 2026 14:28:07 GMT 2026-04-09T14:28:07Z https://repositorio-socioecologia.conahcyt.mx/jspui/handle/1000/304 Title : Conservation genomics of Agave tequilana Weber var. azul: low genetic differentiationand heterozygote excess in the teqquila agave from Jalisco, Mexico Authors: Karen Yazmin Ruiz Mondragón; Erika Aguirre-Planter; Jaime Gasca-Pineda; Anastasia Klimova; Roberto-Emiliano Trejo-Salazar; MARCO ANTONIO REYES GUERRA; Rodrigo Medellin; Daniel Piñero; Rafael Lira Saade; Luis Eguiarte Summary or description: "Background: Genetic diversity is fundamental for the survival of species. In particular, in a climate change scenario, it is crucial that populations maintain genetic diversity so they can adapt to novel environmental conditions. Genetic diversity in wild agaves is usually high, with low genetic differentiation among populations, in part maintained by the agave pollinators such as the nectarivorous bats. In cultivated agaves, patterns of genetic diversity vary according to the intensity of use, management, and domestication stage. In Agave tequilana Weber var. azul (A. tequilana thereafter), the plant used for tequila production, clonal propagation has been strongly encouraged. These practices may lead to a reduction in genetic diversity." Tue, 01 Nov 2022 00:00:00 GMT https://repositorio-socioecologia.conahcyt.mx/jspui/handle/1000/304 2022-11-01T00:00:00Z https://repositorio-socioecologia.conahcyt.mx/jspui/handle/1000/210 Title : Uses, Knowledge and Extinction Risk Faced by Agave Species in Mexico Authors: Cecilia Alducín Martínez; Karen Yazmin Ruiz Mondragón; Erika Aguirre-Planter; Jaime Gasca-Pineda; Luis Eguiarte; Rodrigo Medellin Summary or description: 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. Thu, 01 Dec 2022 00:00:00 GMT https://repositorio-socioecologia.conahcyt.mx/jspui/handle/1000/210 2022-12-01T00:00:00Z https://repositorio-socioecologia.conahcyt.mx/jspui/handle/1000/209 Title : Mezcal Boom and Extinction Debts Authors: Alfonso Valiente-Banuet Editors: Robert W. Jones, Patricia Ornelas-García, Rubén Pineda López y Fernando Álvarez Summary or description: El mezcal se ha convertido en una bebida de moda, que va ganando seguidores año con año, haciendo que la demanda aumente considerablemente. Sin embargo, no se ha considerado toda la problemática ambiental y social que se desencadenaría si la tendencia del consumo de esta bebida sigue aumentando, propiciando la perdida de especies vegetales y animales claves en el mantenimiento de los ecosistemas, lo que generaría una serie de extinciones de un gran número de especies y una perdida importante de la biodiversidad. Matter: Ecología de la biodiversidad Sun, 01 Jan 2023 00:00:00 GMT https://repositorio-socioecologia.conahcyt.mx/jspui/handle/1000/209 2023-01-01T00:00:00Z https://repositorio-socioecologia.conahcyt.mx/jspui/handle/1000/208 Title : Genomic analysis unveils reduced genetic variability but increased proportion of heterozygotic genotypes of the intensively managed mezcal agave, Agave angustifolia Authors: Anastasia Klimova; Karen Yazmin Ruiz Mondragón; Erika Aguirre-Planter; Alfonso Valiente-Banuet; Rafael Lira Saade; Luis Eguiarte Editors: American Journal of Botany Summary or description: The central Oaxaca Basin has a century-long history of agave cultivation and is hypothesized to be the region of origin of other cultivated crops. Widely cultivated for mezcal production, the perennial crop known as “espadín” is putatively derived from wild Agave angustifolia. Nevertheless, little is known about its genetic relationship to the wild A. angustifolia or how the decades-long clonal propagation has affected its genetics. Methods: Using restriction-site-associated DNA sequencing and over 8000 single-nucleotide polymorphisms, we studied aspects of the population genomics of wild and cultivated A. angustifolia in Puebla and Oaxaca, Mexico. We assessed patterns of genetic diversity, inbreeding, distribution of genetic variation, and differentiation among and within wild populations and plantations. Results: Genetic differentiation between wild and cultivated plants was strong, and both gene pools harbored multiple unique alleles. Nevertheless, we found several cultivated individuals with high genetic affinity with wild samples. Higher heterozygosity was observed in the cultivated individuals, while in total, they harbored considerably fewer alleles and presented higher linkage disequilibrium compared to the wild plants. Independently of geographic distance among sampled plantations, the genetic relatedness of the cultivated plants was high, suggesting a common origin and prevalent role of clonal propagation. Conclusions: The considerable heterozygosity found in espadín is contained within a network of highly related individuals, displaying high linkage disequilibrium generated by decades of clonal propagation and possibly by the accumulation of somatic mutations. Wild A. angustifolia, on the other hand, represents a significant genetic diversity reservoir that should be carefully studied and conserved. Sun, 01 Jan 2023 00:00:00 GMT https://repositorio-socioecologia.conahcyt.mx/jspui/handle/1000/208 2023-01-01T00:00:00Z