Facultative apomixis and hybridization in arctic Potentilla section Niveae (Rosaceae) from Svalbard
نویسندگان
چکیده
منابع مشابه
Megagametophyte development in Potentilla nivea (Rosaceae) from northern Swedish Lapland.
An investigation of the embryology of Potentilla nivea was carried out using a confocal laser scanning microscope. The crassinucellate nature of the ovule as well as the presence of a multicellular archesporium was confirmed. A "nucellar cap" builds up as the result of mitotic divisions in the parietal cell tissue and the nucellar epidermis. Earlier reports that several mature megagametophytes ...
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ژورنال
عنوان ژورنال: Botanical Journal of the Linnean Society
سال: 2003
ISSN: 1095-8339,0024-4074
DOI: 10.1046/j.1095-8339.2003.00190.x