Floral variation and floral genetics in basal angiosperms

Title:
Floral variation and floral genetics in basal angiosperms
Authors:
Soltis, Pamela S.; Brockington, Samuel F.; Yoo, Mi-Jeong; Piedrahita, Ana; Latvis, Maribeth; Moore, Michael J.; Chanderbali, Andre S.; Soltis, Douglas E.
Abstract:
Recent advances in phylogeny reconstruction and floral genetics set the stage for new investigations of the origin and diversification of the flower. We review the current state of angiosperm phylogeny, with an emphasis on basal lineages. With the surprising inclusion of Hydatellaceae with Nymphaeales, recent studies support the topology of Amborella sister to all other extant angiosperms, with Nymphaeales and then Austrobaileyales as subsequent sisters to all remaining angiosperms. Notable modifications from most recent analyses are the sister relationships of Chloranthaceae with the magnoliids and of Ceratophyllaceae with eudicots. We review “trends” in floral morphology and contrast historical, intuitive interpretations with explicit character-state reconstructions using molecular-based trees, focusing on (1) the size, number, and organization of floral organs; (2) the evolution of the perianth; (3) floral symmetry; and (4) floral synorganization. We provide summaries of those genes known to affect floral features that contribute to much of floral diversity. Although most floral genes have not been investigated outside of a few model systems, sufficient information is emerging to identify candidate genes for testing specific hypotheses in nonmodel plants. We conclude with a set of evo-devo case studies in which floral genetics have been linked to variation in floral morphology.
Citation:
Soltis, P.S., S.F. Brockington, M.J. Yoo, A. Piedrahita, et al. 2009. "Floral variation and floral genetics in basal angiosperms." American Journal Of Botany 96(1): 110-128.
Publisher:
Botanical Society of America
DATE ISSUED:
2009
Department:
Biology
Type:
article
PUBLISHED VERSION:
10.3732/ajb.0800182
PERMANENT LINK:
http://hdl.handle.net/11282/309434

Full metadata record

DC FieldValue Language
dc.contributor.authorSoltis, Pamela S.en_US
dc.contributor.authorBrockington, Samuel F.en_US
dc.contributor.authorYoo, Mi-Jeongen_US
dc.contributor.authorPiedrahita, Anaen_US
dc.contributor.authorLatvis, Maribethen_US
dc.contributor.authorMoore, Michael J.en_US
dc.contributor.authorChanderbali, Andre S.en_US
dc.contributor.authorSoltis, Douglas E.en_US
dc.date.accessioned2013-12-23T16:09:34Zen
dc.date.available2013-12-23T16:09:34Zen
dc.date.issued2009en
dc.identifier.citationSoltis, P.S., S.F. Brockington, M.J. Yoo, A. Piedrahita, et al. 2009. "Floral variation and floral genetics in basal angiosperms." American Journal Of Botany 96(1): 110-128.en_US
dc.identifier.issn0002-9122en_US
dc.identifier.urihttp://hdl.handle.net/11282/309434en
dc.description.abstractRecent advances in phylogeny reconstruction and floral genetics set the stage for new investigations of the origin and diversification of the flower. We review the current state of angiosperm phylogeny, with an emphasis on basal lineages. With the surprising inclusion of Hydatellaceae with Nymphaeales, recent studies support the topology of Amborella sister to all other extant angiosperms, with Nymphaeales and then Austrobaileyales as subsequent sisters to all remaining angiosperms. Notable modifications from most recent analyses are the sister relationships of Chloranthaceae with the magnoliids and of Ceratophyllaceae with eudicots. We review “trends” in floral morphology and contrast historical, intuitive interpretations with explicit character-state reconstructions using molecular-based trees, focusing on (1) the size, number, and organization of floral organs; (2) the evolution of the perianth; (3) floral symmetry; and (4) floral synorganization. We provide summaries of those genes known to affect floral features that contribute to much of floral diversity. Although most floral genes have not been investigated outside of a few model systems, sufficient information is emerging to identify candidate genes for testing specific hypotheses in nonmodel plants. We conclude with a set of evo-devo case studies in which floral genetics have been linked to variation in floral morphology.en_US
dc.publisherBotanical Society of Americaen_US
dc.identifier.doi10.3732/ajb.0800182en
dc.subject.departmentBiologyen_US
dc.titleFloral variation and floral genetics in basal angiospermsen_US
dc.typearticleen_US
dc.identifier.journalAmerican Journal Of Botanyen_US
dc.subject.keywordABC modelen_US
dc.subject.keywordBasal angiospermsen_US
dc.subject.keywordEvo-devoen_US
dc.subject.keywordPerianth evolutionen_US
dc.subject.keywordSymmetryen_US
dc.subject.keywordSynorganizationen_US
dc.identifier.volume96en_US
dc.identifier.issue1en_US
dc.identifier.startpage110en_US
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