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Corona and anther skirt in Hoya (Apocynaceae, Marsdenieae)
Stockholms universitet, Naturvetenskapliga fakulteten, Botaniska institutionen.
2008 (Engelska)Ingår i: Plant Systematics and Evolution, ISSN 0378-2697, E-ISSN 1615-6110, Vol. 271, nr 02-jan, s. 9-17Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The so called revolute margins of the corona in the genus Hoya (Marsdenieae) are homologous to the anther skirt. The anther skirt is primarily formed of two latero-basal lobes of the anther. In Hoya these lobes are fused with the underside of the basal process of the staminal corona and have evolved into a dominant structure of the gynostegium. Embedded in the anther skirt is the nectar tube, formed by the basal elongation of the guide rail. In many species, however, the function of nectar secretion for pollinator reward has been transferred to the anther skirt beneath the basal process of the corona. A survey of the Marsdenieae shows that the potential for developing an anther skirt is present in several other genera as well, though nowhere has it evolved into such elaborated structures as in Hoya.

Ort, förlag, år, upplaga, sidor
2008. Vol. 271, nr 02-jan, s. 9-17
Nyckelord [en]
Hoya, Marsdenia, corona, anther skirt, ontogeny, homology
Nationell ämneskategori
Botanik
Identifikatorer
URN: urn:nbn:se:su:diva-58544DOI: 10.1007/s00606-007-0602-6ISI: 000254486600002OAI: oai:DiVA.org:su-58544DiVA, id: diva2:420970
Anmärkning
authorCount :2Tillgänglig från: 2011-06-07 Skapad: 2011-06-03 Senast uppdaterad: 2017-12-11Bibliografiskt granskad

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