A phylogeny and biogeographic analysis for the Cape-Pondweed family Aponogetonaceae (Alismatales).
نویسندگان
چکیده
The monocot family Aponogetonaceae (Alismatales) consists only of Aponogeton, with 57 species occurring in Africa, Madagascar, India and Sri Lanka, Southeast Asia and Australia. Earlier studies inferred a Madagascan or Australian origin for the genus. Aponogeton-like pollen is documented from the Late Cretaceous of Wyoming, the early mid-Eocene of Canada, and the late mid-Eocene of Greenland. We obtained nuclear and plastid DNA sequences for 42 species and generated a time-calibrated phylogeny, rooted on appropriate outgroups. Statistical biogeographic analyses were carried out with or without the fossils incorporated in the phylogeny. The recent-most common ancestor of living Aponogetonaceae appears to date to the mid-Eocene and to have lived in Madagascar or Africa (but not Australia). Three transoceanic dispersal events from Africa/Madagascar to Asia sometime during the Miocene could explain the observed species relationships. As inferred in earlier studies, an ancient Australian species is sister to all other Aponogetonaceae, while the remaining Australian species stem from an Asian ancestor that arrived about 5million years ago. The family's ancient Northern Hemisphere fossil record and deepest extant divergence between a single Australian species and an Africa/Madagascar clade are statistically well-supported and rank among the most unusual patters in the biogeography of flowering plants.
منابع مشابه
Aponogeton pollen from the Cretaceous and Paleogene of North America and West Greenland: Implications for the origin and palaeobiogeography of the genus☆
The fossil record of Aponogeton (Aponogetonaceae) is scarce and the few reported macrofossil findings are in need of taxonomic revision. Aponogeton pollen is highly diagnostic and when studied with light microscopy (LM) and scanning electron microscopy (SEM) it cannot be confused with any other pollen types. The fossil Aponogeton pollen described here represent the first reliable Cretaceous and...
متن کاملEthnobotanical Applications and Their Correspondence with Phylogeny in Apiaceae-Apioideae
The Apiaceae family includes some of the most known medicinal, food and spice species in the world some of which have been used by humans since antiquity. Local people in different regions use many species of the family but the information regarding their uses is scattered. Traditionally used species are good candidates for bioprospecting. Combining traditional uses with phylogenetic data helps...
متن کاملPhylogeny and biogeography of southern African spoon-winged lacewings (Neuroptera: Nemopteridae: Nemopterinae).
Nemopteridae are a charismatic family of lacewings characterised by uniquely extended hind wings. They are an ancient widespread group in the drier regions of the world. The family comprises two subfamilies, Crocinae (thread-wings) and Nemopterinae (spoon- and ribbon-wings). The present distribution of the family has been largely influenced by the vicariant events of plate tectonics, resulting ...
متن کاملMolecular phylogeny of Ephippidae (Actinopteri: Acanthuriformes)
The family Ephippidae consists of eight genera and 15 species. The genus Platax with five species distributed throughout Indo-Pacific, seemingly has more diversity than other genera of the family. Phylogenetic relationships among species and genera of the family, however, are not fully resolved. 48 sequences of eight species (four genera) of batfishes are available in the GenBank and have been ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Molecular phylogenetics and evolution
دوره 82 Pt A شماره
صفحات -
تاریخ انتشار 2015