Estudio taxonómico del complejo Alstroemeria pulchra (Alstroemeriaceae) desde una perspectiva integrativa.
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Date
2024
Journal Title
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Publisher
Universidad de Concepción
Abstract
Esta tesis doctoral se centró en la caracterización detallada del complejo Alstroemeria pulchra, utilizando un enfoque integrativo que combinó análisis morfo-colorimétricos, citológicos, moleculares y ecológicos para discernir unidades taxonómicas discretas. A través de métodos avanzados en morfometría geométrica y análisis colorimétricos, se logró una cuantificación y comparación precisa de la morfología y coloración florales, destacando la diferenciación de Alstroemeria pulchra var. maxima y A. pulchra subsp. lavandulacea de A. pulchra var. pulchra. Los análisis discriminantes destacaron la capacidad de estos caracteres para diferenciar taxones, especialmente de A. pulchra var. maxima y A. pulchra subsp. lavandulacea con sus características morfológicas y colorimétricas distintivas. Además, la inclusión de estudios citológicos y moleculares proporcionó una comprensión más profunda de la estructura genética y la evolución del complejo. La variabilidad genética encontrada en A. pulchra var. pulchra, A. pulchra subsp. lavandulacea y A. magnifica subsp. magenta sugiere la existencia de procesos adaptativos recientes o activos, resaltando la importancia de estudios futuros que incluyan más especies y poblaciones para explorar eventos de hibridación dentro del género. Este trabajo contribuye al conocimiento taxonómico de Alstroemeria, enfatizando la necesidad de enfoques multidisciplinarios para una taxonomía botánica precisa y fundamentada, proporcionando bases sólidas para la conservación y comprensión de la biodiversidad en este género endémico de alto interés ecológico y ornamental.
This doctoral thesis focused on the detailed characterization of the Alstroemeria pulchra complex, using an integrative approach that combined morpho-colorimetric, cytological, molecular, and ecological analyses to discern discrete taxonomic units. Through advanced methods in geometric morphometry and colorimetric analyses, precise quantification and comparison of floral morphology and coloration were achieved, highlighting the differentiation of Alstroemeria pulchra var. maxima and A. pulchra subsp. lavandulacea from A. pulchra var. pulchra. Discriminant analyses emphasized the ability of these characters to differentiate taxa, particularly A. pulchra var. maxima and A. pulchra subsp. lavandulacea with their distinctive morphological and colorimetric characteristics. Furthermore, the inclusion of cytological and molecular studies provided a deeper understanding of the genetic structure and evolution of the complex. The genetic variability found in A. pulchra var. pulchra, A. pulchra subsp. lavandulacea, and A. magnifica subsp. magenta suggests the existence of recent or active adaptive processes, highlighting the importance of future studies that include more species and populations to explore hybridization events within the genus. This work contributes to the taxonomic knowledge of Alstroemeria, emphasizing the need for multidisciplinary approaches for accurate and evidence-based botanical taxonomy, providing solid foundations for the conservation and understanding of biodiversity in this genus of high ecological and ornamental interest.
This doctoral thesis focused on the detailed characterization of the Alstroemeria pulchra complex, using an integrative approach that combined morpho-colorimetric, cytological, molecular, and ecological analyses to discern discrete taxonomic units. Through advanced methods in geometric morphometry and colorimetric analyses, precise quantification and comparison of floral morphology and coloration were achieved, highlighting the differentiation of Alstroemeria pulchra var. maxima and A. pulchra subsp. lavandulacea from A. pulchra var. pulchra. Discriminant analyses emphasized the ability of these characters to differentiate taxa, particularly A. pulchra var. maxima and A. pulchra subsp. lavandulacea with their distinctive morphological and colorimetric characteristics. Furthermore, the inclusion of cytological and molecular studies provided a deeper understanding of the genetic structure and evolution of the complex. The genetic variability found in A. pulchra var. pulchra, A. pulchra subsp. lavandulacea, and A. magnifica subsp. magenta suggests the existence of recent or active adaptive processes, highlighting the importance of future studies that include more species and populations to explore hybridization events within the genus. This work contributes to the taxonomic knowledge of Alstroemeria, emphasizing the need for multidisciplinary approaches for accurate and evidence-based botanical taxonomy, providing solid foundations for the conservation and understanding of biodiversity in this genus of high ecological and ornamental interest.
Description
Tesis para optar al grado académico de Doctor/a en Ciencias Biológicas área Botánica
Keywords
Alstroemeria, Alstroemeriaceae, Taxonomía botánica