Alpine plant radiations are compared across the world's major mountain ranges and shown
to be overwhelmingly young and fast, largely confined to the Pliocene and Pleistocene, and …

Since Darwin, the diversity of flowers has been attributed to selection by pollinators.
Although pollinators commonly act as selective agents on floral traits, determining the extent …

Exosomes are secreted by all cell types and contain proteins and nucleic acids. Here, we
report that breast cancer associated exosomes contain microRNAs (miRNAs) associated …

Aim To quantify the effect of Pleistocene climate fluctuations on habitat connectivity across
páramos in the Northern Andes. Location Northern Andes. Methods The unique páramos …

The question of why there are so many plant species needs two kinds of answer: an
explanation for the origin of plant species, and an explanation for how they can coexist …

Gesneriaceae are represented in the New World (NW) by a major clade (c. 1000 species)
currently recognized as subfamily Gesnerioideae. Radiation of this group occurred in all …

Existem visitantes florais que coletam recursos em flores sem realizar polinização, e
também há espécies de plantas que atraem polinizadores sem oferecer qualquer recurso. A …

Abstract Puya (Bromeliaceae), with> 200 species, is a classic example of a recent, rapid
species-level radiation in the Andes. To assess the biogeographical history of this primarily …

Over the last decade, molecular studies carried out on the Australasian biota have revealed
a new world of organic structure that exists from submicroscopic to continental scale …

Biogeography of the tropical alpine flora of South and Central America, the páramo flora,
has been studied by dividing genera into tropical, temperate, and cosmopolitan chorological …