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Epiparasitic plants specialized on arbuscular mycorrhizal fungi
It is shown that non-photosynthetic plants associate with AMF and can display the characteristic specificity of epiparasites, which suggests that AMF mediate significant inter-plant carbon transfer in nature.
Emerging phylogeographical patterns of plants and terrestrial vertebrates from Patagonia
This review reveals some congruent phylogeographical patterns within and among plants and terrestrial vertebrates, and suggests that Pre-Quaternary as well as Quaternary geological events would have been important driving forces in the evolutionary history of Patagonian lineages.
Multiple periglacial refugia in the Patagonian steppe and post‐glacial colonization of the Andes: the phylogeography of Calceolaria polyrhiza
Aim We perform a phylogeographical study of an endemic Patagonian herbaceous plant to assess whether geographical patterns of genetic variation correspond to in situ Pleistocene survival or to…
New insights into the phylogenetic relationships, character evolution, and phytogeographic patterns of Calceolaria (Calceolariaceae).
- A. Cosacov, A. Sérsic, V. Sosa, J. A. De-Nova, S. Nylinder, A. Cocucci
- Biology, Environmental ScienceAmerican journal of botany
- 1 December 2009
Polyploidy, acquisition of elaiophores, and a nototribic pollination mechanism are key aspects of the evolutionary history of Calceolaria, suggesting an evolutionary tendency from highly to moderately specialized pollination systems.
Functional morphology and wasp pollination of two South American asclepiads (Asclepiadoideae-Apocynaceae).
The detailed structure of the flowers revealed a complex system of guide rails and chambers precisely arranged in order to achieve effective pollinaria transport, which explains the differences in details of the functioning of the general pollination mechanism.
Extreme variation in floral characters and its consequences for pollinator attraction among populations of an Andean cactus.
- B. Schlumpberger, A. Cocucci, M. Moré, A. Sérsic, R. Raguso
- Biology, MedicineAnnals of botany
- 1 June 2009
Evidence from light-trapping of moths, pollen carriage on their bodies and moth scale deposition on stigmas suggests that sphingid pollination is prevalent only in the four populations with the longest flowers, in which floral morphological traits and nectar volumes match the classic expectations for the hawkmoth pollination syndrome.
Specialized use of pollen vectors by Caesalpinia gilliesii, a legume species with brush-type flowers
Results show that a pterotribic pattern of pollen deposition on the body of long-tongued hawkmoths is operating in this species, which suggests that brush-type blossoms are not necessarily unspecialized, despite popular belief.
Oil-Collecting structures in Tapinotaspidini: their diversity, function and probable origin (Hymenoptera: Apidae)
Historical and ecological divergence among populations of Monttea chilensis (Plantaginaceae), an endemic endangered shrub bordering the Atacama Desert, Chile
- M. Baranzelli, L. Johnson, A. Cosacov, A. Sérsic
- Environmental Science, BiologyEvolutionary Ecology
- 7 March 2014
The evolutionary history of M. chilensis exhibits a phylogeographical footprint consistent with past fragmentation and allopatric differentiation, where the hyper-arid zone formed by the Atacama Desert clearly acted as an important gene flow barrier, resulting in two ecotypes or geographical races.
RESTRICTION OF POLLINATOR ASSEMBLAGE THROUGH FLOWER LENGTH AND WIDTH IN THREE LONG-TONGUED HAWKMOTH–POLLINATED SPECIES OF MANDEVILLA (APOCYNACEAE, APOCYNOIDEAE)1
It is tested how the corolla tube length and operative width required for effective release of the pollination mechanism could restrict the pollinator assemblage in putatively hawkmoth-pollinated Apocynaceae that differ in flower depth.