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Pollen tetrad segregation and pollen ovule ratios in six species of Acrotriche (Styphelioideae: Ericaceae)

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dc.contributor.authorSchneemilch, M.
dc.contributor.authorKokkinn, M.
dc.date.issued2011
dc.description.abstractPollen morphology can be useful in the determination of phylogeny and mating systems of plants. Pollen ovule ratios can give an indication of the mating system of plant species, and there are a number of theories as to reductions in response to pollination strategies. Pollen tetrad segregation occurs when a number of pollen grains within a tetrad abort; this process has evolved a number of times in the family Ericaceae. Pollen ovule ratios along with the total number of tetrads, number of viable grains and proportions of each of the tetrad types were investigated in six species of Acrotriche (Styphelioideae: Ericaceae). Pollen ovule ratios were used in comparison with related species to give indications of mating systems and to examine theories regarding reductions in pollen production. The study species can be arranged into distinct groupings based on the proportions of tetrad types that correlate with floral morphology and may be indicative of phylogentic associations.
dc.identifier.citationPlant Systematics and Evolution, 2011; 296(3-4):149-156
dc.identifier.doi10.1007/s00606-011-0451-1
dc.identifier.issn0378-2697
dc.identifier.issn1615-6110
dc.identifier.urihttps://hdl.handle.net/1959.8/123885
dc.language.isoen
dc.publisherSpringer Wien
dc.rightsCopyright 2011 Springer-Verlag
dc.source.urihttps://doi.org/10.1007/s00606-011-0451-1
dc.subjecttetrad segregation
dc.subjectheterdynamospory
dc.subjectvariable sterility
dc.subjectpollen ovule ratios
dc.subjectStypheliodeae
dc.subjectsecondary pollen presentation
dc.titlePollen tetrad segregation and pollen ovule ratios in six species of Acrotriche (Styphelioideae: Ericaceae)
dc.typeJournal article
pubs.publication-statusPublished
ror.mmsid9915909130001831

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