English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/103458
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
DC FieldValueLanguage
dc.contributor.authorLora, Jorge-
dc.contributor.authorHerrero Romero, María-
dc.contributor.authorHormaza Urroz, José Ignacio-
dc.date.accessioned2014-10-17T08:08:47Z-
dc.date.available2014-10-17T08:08:47Z-
dc.date.issued2014-09-
dc.identifier.citationLora J, Herrero M, Hormaza JI. Microspore development in Annona (Annonaceae): Differences between monad and tetrad pollen. American Journal of botany 101 (9): 1508-1518 (2014)es_ES
dc.identifier.issn0002-9122-
dc.identifier.urihttp://hdl.handle.net/10261/103458-
dc.descriptionPags.- Figs.- Tabls. The definitive version is available at: http://www.amjbot.org/es_ES
dc.description.abstract• Premise of the study: Permanent tetrads are the most common form of pollen aggregation in flowering plants. The production of pollen in monads is plesiomorphic in angiosperms, but the aggregation into tetrads has arisen independently different times during the evolution of flowering plants. The causes behind the recurrent evolution of pollen aggregation from monads remain elusive. Permanent tetrad pollen is quite common in the Annonaceae, the largest family in the early-divergent order Magnoliales. In some genera, such as Annona, both tetrad- and monad-producing species can be found. • Methods: In this comparative study of pollen development, we use immunolocalization, cytological characterization, and enzymatic assays of four species in the genus Annona and one species in its closely related genus Asimina that release pollen in tetrads and two species in the genus Annona that release pollen in monads. • Key results: The main difference between species with tetrad and monad pollen is a delayed digestion of callose and cellulose at the pollen aperture sites that resulted in nonlayering of the exine in these areas, followed by a rotation and binding of the young microspores at the aperture sites. • Conclusions: Small changes in development resulted in clear morphological changes on pollen dispersal time and open a window on the possible selective advantage of the production of aggregated pollen.es_ES
dc.description.sponsorshipThis work was supported by Ministerio de Economía y Competitividad–European Regional Development Fund, European Union (AGL2010-15140, AGL2012-40239, and AGL2013-43732-R), the BBVA Foundation (BIOCON 08-184/09), INIA (RF2012-00010 and RFP2012-00016), and Gob. Aragón A-43. J.L. was supported by a Juan de la Cierva postdoctoral grant of the Spanish Ministry of Science and Innovation.es_ES
dc.language.isoenges_ES
dc.publisherBotanical Society of Americaes_ES
dc.relation.isversionofPostprintes_ES
dc.rightsopenAccessen_EN
dc.subjectAnnonaes_ES
dc.subjectAnnonaceaees_ES
dc.subjectaperturees_ES
dc.subjectcallosees_ES
dc.subjectmonades_ES
dc.subjectpollen developmentes_ES
dc.subjecttetrades_ES
dc.titleMicrospore development in Annona (Annonaceae): Differences between monad and tetrad pollenes_ES
dc.typeartículoes_ES
dc.identifier.doi10.3732/ajb.1400312-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.3732/ajb.1400312es_ES
dc.identifier.e-issn1537-2197-
dc.embargo.terms2015-09-30es_ES
dc.relation.csices_ES
Appears in Collections:(IHSM) Artículos
(EEAD) Artículos
Files in This Item:
File Description SizeFormat 
LoraJ_AmJBot_2014.pdf6,39 MBAdobe PDFThumbnail
View/Open
Show simple item record
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.