Publications by authors named "Cristian R Cervantes"
Species complexes consist of very close phylogenetic relatives, where morphological similarities make it difficult to distinguish between them using traditional taxonomic methods. Here, we focused on the long-standing challenge of species delimitation in the Mammillaria haageana complex, a group that presents great morphological diversity that makes its taxonomy a puzzle. Our work integrates genomic, morphological, and ecological data to establish the taxonomic limits in the M.
View Article and Find Full Text PDFPilosocereus is one of the Cactaceae family's most relevant genera in terms of the number of species and its wide geographical range in the Americas. Within Pilosocereus, five informal taxonomic groups have been recognized, one of which is P. leucocephalus group s.
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- This study investigates how environmental factors influence subtle phenotypic variations in flower shape and color of the species Mammillaria haageana, contrasting with the neutral evolutionary theory which suggests such variations have little adaptive significance.
- The researchers collected and analyzed flower samples from different populations, using geometric morphometrics to identify significant shape and color variations among accessions, revealing that solar radiation plays a potential role in these variations.
- The findings propose that some of these subtle flower variations may be adaptive, challenging traditional views and highlighting the complexity of how plants respond to their environments.
Article Synopsis
- The study explores genetic mechanisms behind root development in cacti, comparing variations in root architecture across different populations and species.* -
- It details findings of how root architecture variation at the intra-specific level reflects similar patterns at the inter-specific level among closely related species.* -
- The results suggest that the evolution of root architecture in cacti can be understood as a cumulative effect of smaller, gradual changes over time, linking microevolution to macroevolution.*
(Cactaceae) taxonomy has been historically problematic due to the morphological variability and sympatry of the species. This has led to several proposals for infrageneric classification, including subgeneric, section and series categories. Mammillaria ser.
View Article and Find Full Text PDFThe process of hybridization occurs in approximately 40% of vascular plants, and this exchange of genetic material between non-conspecific individuals occurs unequally among plant lineages, being more frequent in certain groups such as (Cactaceae). This genus is known for multiple taxonomic controversies due to widespread polyploidy and probable hybrid origin of several of its species. Southern Mexico species of this genus have been poorly studied despite their great diversity in regions such as the Tehuacán-Cuicatlán Valley which contains around 12% of recognized Mexico's native species.
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