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A metacalibrated time-tree documents the early rise of flowering plant phylogenetic diversity.
TLDR
This time-frame documents an early phylogenetic proliferation that led to the establishment of major angiosperm lineages, and the origin of over half of extant families, in the Cretaceous.
Neotropical mutualism between Acacia and Pseudomyrmex: phylogeny and divergence times.
TLDR
The phylogenies of both New World Acacia and of their associated species of ants and the geographic origin of this mutualism are analyzed, implying that their relationship originated in Mesoamerica between the late Miocene to the middle Pliocene, with eventual diversification of both groups in Mexico.
Phylogeny, diversification rates and species boundaries of Mesoamerican firs (Abies, Pinaceae) in a genus-wide context.
TLDR
Results show that divergence of Mesoamerican firs coincides with a model of environmental stasis and decreased extinction rate, being probably prompted by a series of range expansions and isolation-by-distance.
Thirty clues to the exceptional diversification of flowering plants
TLDR
The identified deep time diversification shifts are clues to the identification of ultimate drivers of angiosperm megadiversity, which probably involve multivariate interactions among intrinsic traits and extrinsic forces.
Differences in Karyotypes between Two Populations of Crotalaria incana from Mexico
The karyotypes and NOR condition of the secondary constrictions of chromosome pair 1 in two populations of Crotalaria incana from the Atlantic and Pacific slopes of Mexico are described. Both
Floral development in three species of Acacia (Leguminosae, Mimosoideae)
TLDR
This study showed that development in the genus Acacia is heterogeneous, which means that each species studied showed different inception patterns of the calyx and androecium, whereas the inception pattern of the corolla and gynoecium were similar.
MEXICO ANTS: incidence and abundance along the Nearctic-Neotropical interface.
TLDR
This data paper compiles a total of 21,731 records for 887 ant species distributed throughout Mexico from 1894 to 2018, which is the most complete data set available to date in the literature for the country.
[Presence of lectins, tannins and protease inhibitors in venezuelan marine algae].
TLDR
The presence of lectins, tannins and protease inhibitors was studied in 27 algae species collected at four Venezuelan coral rift sites and in Grateulopia filicina and Hypnea cervicornis hemagglutinating activity persisted after the polyvinylpolypirrolidone treatment, presumably due to the presence of true lectins in those algae.
New Reports of Spiders in Three Mexican Ant-Acacias
TLDR
This study showed that the occurrence of spiders in the Vachellia-Pseudomyrmex mutualism system has been overlooked and is likely more common than what has been reported until now, opening an opportunity for the study of the evolution of spider-ant-plant interactions.
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