Morphometric characterization of populations of the Agave angustifolia complex (Asparagaceae: Agavoideae) in the northern region of Guerrero, Mexico

Authors

  • Flaviano Godinez-Jaimes Universidad Autónoma de Guerrero
  • Jorge Huerta-Zavala Universidad Autónoma de Guerrero, Facultad de Ciencias Agropecuarias y Ambientales. Maestría en Ciencias Agropecuarias y Gestión Local. Unidad Tuxpan https://orcid.org/0000-0001-9382-8701
  • Abisaí Josué García-Mendoza Universidad Nacional Autónoma de México, Instituto de Biología, Jardín Botánico https://orcid.org/0000-0002-0284-5117
  • Elías Hernández-Castro : Universidad Autónoma de Guerrero, Facultad de Ciencias Agropecuarias y ambientales, Doctorado en Sostenibilidad de los recursos Agropecuarios. https://orcid.org/0000-0001-6573-6236
  • Héctor Ramón Segura-Pacheco Universidad Autónoma de Guerrero, Facultad de Ciencias Agropecuarias y ambientales, Maestría en Ciencias Agropecuarias y Gestión Local https://orcid.org/0000-0002-6232-9819
  • Agustín Damián-Nava Universidad Autónoma de Guerrero, Facultad de Ciencias Agropecuarias y Ambientales. Maestría en Ciencias Agropecuarias y Gestión Local. Unidad Tuxpan https://orcid.org/0000-0002-1581-0407

DOI:

https://doi.org/10.18387/polibotanica.59.7

Keywords:

conservation, mezcal, taxonomic complex.

Abstract

Of the Agave genus, the A. angustifolia complex is one of the most important groups from an economic and cultural point of view of which more than 20 species have been described. However, there have been few studies that allow us to understand the taxonomic relationships of the group. In this study, wild and cultivated individuals of this complex were morphometrically characterized, with the aim of contributing to the understanding of this group. 25 field trips were carried out and 141 specimens were collected from the Northern Region of Guerrero and a municipality in the Central Region of Guerrero, Mexico, from august 2016 to december 2017. Data on 29 morphometric variables were taken from each specimen for subsequent selection and statistical analysis, these being the Principal Component Analysis (PCA) and the Linear Discriminant Analysis (LDA), in which six and 15 characters were used, respectively. One hundred specimens of Agave angustifolia var. angustifolia were taxonomically identified. (70.92%), 36 specimens of A. angustifolia var. rubescens (25.53%) and five specimens of A. rhodacantha (3.55%), this last species turned out to be a new record for Guerrero. The variables length of the leaf, number of teeth on one side of the leaf, perimeter of the floral peduncle, width of the leaf, number of leaves per plant, length of the terminal spine and average number of viable seeds, allowed the delimitation of the taxa studied. The varieties of A. angustifolia presented overlaps in some specimens, which reflects the high phenotypic variability of both taxa. The LDA turned out to be a useful statistical tool for understanding the phenotypic variables of the A. angustifolia complex.

Author Biographies

  • Jorge Huerta-Zavala, Universidad Autónoma de Guerrero, Facultad de Ciencias Agropecuarias y Ambientales. Maestría en Ciencias Agropecuarias y Gestión Local. Unidad Tuxpan
    PhD student in sustainability of agricultural resources, FACAA-UAGro
  • Abisaí Josué García-Mendoza, Universidad Nacional Autónoma de México, Instituto de Biología, Jardín Botánico
    Academic of the Botanical Garden of the Institute of Biology (IB), UNAM. His specialty is the Systematics of the Agavaceae family. Scientific production includes the edition of four books; as well as more than 60 scientific and popular articles.
  • Elías Hernández-Castro, : Universidad Autónoma de Guerrero, Facultad de Ciencias Agropecuarias y ambientales, Doctorado en Sostenibilidad de los recursos Agropecuarios.

    Professor-Researcher assigned to the Faculty of Agricultural and Environmental Sciences of the Autonomous University of Guerrero. Postgraduate Coordinator of the UAGro in the Northern Region of Guerrero. He teaches undergraduate and graduate courses.
    Member of the academic body: Comprehensive food production: UAGro-CA-166-Consolidado. Director and thesis advisor of Bachelor's, Master's and Doctorate students.

  • Héctor Ramón Segura-Pacheco, Universidad Autónoma de Guerrero, Facultad de Ciencias Agropecuarias y ambientales, Maestría en Ciencias Agropecuarias y Gestión Local

    Professor-Researcher assigned to the Center for Innovation, Competitiveness and Sustainability, located in Acapulco, Gro. Research teacher in the educational programs of the UAGro: Master in Competitiveness and Sustainability (SNP-Conahcyt), Master in Management for Sustainable Development (SNP-Conahcyt), and Master in Administration (SNP-Conahcyt), he has also taught undergraduate courses and doctorate, as well as a master's degree in other educational programs at UAGro. Director, co-director and thesis advisor of Bachelor's, Master's and Doctorate students at UAGro and Conahcyt Public Research Centers. Evaluator-dictator for scientific journals (Mexican and foreign), and for book editorial committees and organizing committees of various conferences. Member of the Academic Body Behavior, Competitiveness and Organizational Sustainability: UAGro-CA-30, Consolidated.

  • Agustín Damián-Nava, Universidad Autónoma de Guerrero, Facultad de Ciencias Agropecuarias y Ambientales. Maestría en Ciencias Agropecuarias y Gestión Local. Unidad Tuxpan

    Member of the National System of Researchers. Level 1. (SNI-CONACYT). Desirable Profile Recognition. Arbitrator and technical reviewer of article. Active member of the Mexican Society of Phytogenetics A. C. Professor-Researcher assigned to the Academic Unit of Agricultural and Environmental Sciences of the Autonomous University of Guerrero. He teaches bachelor's and master's courses. Member of the academic body: Comprehensive food production: UAGro-CA-166-Consolidated. Director and thesis advisor of Bachelor's and Master's students.

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Published

2024-12-01

How to Cite

Morphometric characterization of populations of the Agave angustifolia complex (Asparagaceae: Agavoideae) in the northern region of Guerrero, Mexico. (2024). POLIBOTANICA, 59. https://doi.org/10.18387/polibotanica.59.7