Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/40359
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Campo DC | Valor | Lengua/Idioma |
---|---|---|
dc.contributor.author | Herrera, Carlos M. | - |
dc.date.accessioned | 2011-09-30T09:16:54Z | - |
dc.date.available | 2011-09-30T09:16:54Z | - |
dc.date.issued | 2002-10 | - |
dc.identifier.citation | American Journal of Botany 89(10): 1570–1578. 2002. | es_ES |
dc.identifier.uri | http://hdl.handle.net/10261/40359 | - |
dc.description.abstract | Little is known about patterns and correlates of variation in microgametophyte populations for naturally pollinated plants, yet this information is critical for evaluating the prevalence and potential evolutionary significance of gametophyte competition in the wild. This paper analyzes spatial and temporal variation in microgametophyte populations (= number of pollen tubes per style) for the winter-flowering, perennial herb Helleborus foetidus (Ranunculaceae), based on data from 29 populations in three regions of the Iberian Peninsula collected over two consecutive years. Mean size of microgametophyte populations varied significantly at a wide range of spatial scales, including among regions, among populations within regions, among individual plants within populations, among flowers of the same plant, and among pistils of the same flower (H. foetidus flowers are apocarpous). Differences between regions were quantitatively negligible. Differences between populations in the same region were moderate to low, and their sign and magnitude were inconsistent between years. Roughly half of total variance in microgametophyte numbers was accounted for by variation within individual plants, and the largest part of this component was due to differences between the pistils of the same flower. These results reveal extreme spatial fine-graininess and marked stochasticity in the spatial variation of H. foetidus microgametophyte populations and suggest that opportunities for consistent selection on male gametophyte competitive ability are probably negligible in this species | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Botanical Society of America | es_ES |
dc.rights | openAccess | es_ES |
dc.subject | gametophyte competition | es_ES |
dc.subject | Geographical variation | es_ES |
dc.subject | Helleborus foetidus | es_ES |
dc.subject | microgametophyte populations | es_ES |
dc.subject | pollen limitation | es_ES |
dc.subject | pollen tube numbers | es_ES |
dc.subject | Ranunculaceae | es_ES |
dc.subject | winter flowering | es_ES |
dc.title | Censusing natural Microgametophyte populations:variable spatial mosaics and extreme fine-graininess in winter-flowering Helleborus foetidus (Ranunculaceae) | es_ES |
dc.type | artículo | es_ES |
dc.identifier.doi | 10.3732/ajb.89.10.1570 | - |
dc.description.peerreviewed | Peer reviewed | es_ES |
dc.relation.publisherversion | http://www.amjbot.org/content/89/10/1570.full.pdf+html | es_ES |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.openairetype | artículo | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
Aparece en las colecciones: | (EBD) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
herrera.2002.am.j.bot.doc | 667 kB | Microsoft Word | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
57
checked on 25-mar-2024
WEB OF SCIENCETM
Citations
58
checked on 25-feb-2024
Page view(s)
387
checked on 29-mar-2024
Download(s)
199
checked on 29-mar-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.