Molecular phylogeny and adaptive radiation of the endemic Hawaiian Plantago species (Plantaginaceae)
نویسندگان
چکیده
منابع مشابه
Molecular Adaptation during Adaptive Radiation in the Hawaiian Endemic Genus Schiedea
BACKGROUND "Explosive" adaptive radiations on islands remain one of the most puzzling evolutionary phenomena. The rate of phenotypic and ecological adaptations is extremely fast during such events, suggesting that many genes may be under fairly strong selection. However, no evidence for adaptation at the level of protein coding genes was found, so it has been suggested that selection may work m...
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Evolutionary theory has gained tremendous insight from studies of adaptive radiations. High rates of speciation, morphological divergence, and hybridization, combined with low sequence variability, however, have prevented phylogenetic reconstruction for many radiations. The Hawaiian honeycreepers are an exceptional adaptive radiation, with high phenotypic diversity and speciation that occurred ...
متن کاملYet another new species from one of the best-studied neotropical areas: Plantago humboldtiana (Plantaginaceae), an extremely narrow endemic new species from a waterfall in southern Brazil
This article presents and describes Plantago humboldtiana, an extremely narrow endemic rheophytic new species from a waterfall in Corupá, Santa Catarina state, southern Brazil. The new species is unique in presenting a combination of type-G antrorse trichomes on scapes, pendulous inflorescences and 1-seeded pyxidia. Only one population is known to exist, despite intensive search efforts in near...
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ژورنال
عنوان ژورنال: American Journal of Botany
سال: 2008
ISSN: 0002-9122,1537-2197
DOI: 10.3732/ajb.0800132