Advances in and perspectives on evolution in Bromeliaceae / Clarisse Palma-Silva in Botanical Journal of the Linnean Society, vol. 180, n°3 (Année 2016)

Public [article]  inBotanical Journal of the Linnean Society > vol. 180, n°3 (Année 2016) . - pp. 305-322 Titre : Advances in and perspectives on evolution in Bromeliaceae Type de document : Livre Auteurs : Clarisse Palma-Silva, Auteur ; Barbara Leal, Auteur ; Cleber Chaves, Auteur ; Michael F. Fay, Auteur Année de publication : 2016 Article en page(s) : pp. 305-322 Langues : Anglais Mots-clés : Bromeliaceae  biogéographie  hybridization  phylogeny Type de publication : périodique Référence biblio : Palma-Silva C., Leal B., Chaves C., Fay M., 2016 - Advances in and perspectives on evolution in Bromeliaceae. Botanical Journal of the Linnean Society, 180 (3) : 305-322. DOI : 10.1111/boj.12431 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=66305 [article]

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aucun exemplaire

Ophrys fusca and Ophrys dyris (Orchidaceae) – constancy of tetraploidy amongst populations in Central Portugal / Joana Abreu in New Journal of botany, vol. 7, n°2-3 (Année 2017)

Public [article]  inNew Journal of botany > vol. 7, n°2-3 (Année 2017) . - pp. 94-100 Titre : Ophrys fusca and Ophrys dyris (Orchidaceae) – constancy of tetraploidy amongst populations in Central Portugal Type de document : Livre Auteurs : Joana Abreu, Auteur ; Julie A. Hawkins, Auteur ; Helena Cotrim, Auteur ; Michael F. Fay, Auteur ; Oriane Hidalgo, Auteur ; Jaume Pellicer, Auteur Année de publication : 2018 Article en page(s) : pp. 94-100 Langues : Anglais Mots-clés : flow cytometry   chromosome numbers   cytotype   genome size   polyploidy Résumé : "Ophrys is amongst the best known orchid genera and is an established system for the study of pollinator-mediated floral evolution. Two species, Ophrys fusca s.l. and Ophrys dyris (= O. omegaifera subsp. dyris) belonging to Ophrys section Pseudophrys are the focus of this study. In the context of an integrative study of morphological and genetic diversity of O. fusca and O. dyris, genome size (GS) and cytotype diversity were surveyed from Portuguese populations. Flow cytometry methods were used to assess GS, and subsequently determine the ploidy level of 67 specimens, including the species and putative hybrids. Cytotypes were also confirmed based on chromosome counts from the roots of two specimens, one of each species. Constancy of nuclear DNA content (1C = 11.19 pg) and ploidy level (2n = 4x = 72, 74) was documented among all the individuals analysed. Implications are considered, in terms of interpreting the origin and predicting the persistence of putative hybrids." Type de publication : périodique Référence biblio : Abreu J., Hawkins J., Cotrim H., Fay M., Hidalgo O., Pellicer J., 2018 - Ophrys fusca and Ophrys dyris (Orchidaceae) – constancy of tetraploidy amongst populations in Central Portugal. New Journal of botany, 7 : 94-100. DOI : 10.1080/20423489.2017.1408185 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=66864 [article]

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P0130-5	Brest	Exclu du prêt

Which moss is which ? Identification of the threatened moss Orthodontium gracile using molecular and morphological techniques / J. K. Rowntree in Conservation Genetics, vol. 11 (Année 2010)

Public [article]  inConservation Genetics > vol. 11 (Année 2010) . - pp. 1033-1042 Titre : Which moss is which ? Identification of the threatened moss Orthodontium gracile using molecular and morphological techniques Type de document : Livre Auteurs : J. K. Rowntree, Auteur ; Robyn S. Cowan, Auteur ; M. Leggett, Auteur ; Michael F. Fay, Auteur Année de publication : 2010 Article en page(s) : pp. 1033-1042 Langues : Anglais Catégories : [Thèmes] Bryophytes [Thèmes] Conservation [Thèmes] Plante à forte valeur patrimoniale Mots-clés : Ex situ conservation  Orthodontium gracile Résumé : Résumé : "Taxonomic misidentification has potentially serious consequences for the management of threatened species. Closely related moss species are often difficult to distinguish from each other using morphological characteristics. Here we compared the use of molecular (DNA barcoding of the trnL-F intron, AFLPs) and morphological techniques to demonstrate that ex situ cultures, held for re-introduction trails, of the UK critically endangered moss Orthodontium gracile were contaminated with the potentially invasive species O. lineare. Barcoding techniques and AFLPs were both successful in determining Orthodontium species identity. There was some discrepancy between determinations from molecular and morphological techniques and some individuals were misidentified using morphological characteristics alone. When species identity is critical, for example prior to re-establishment or re-introduction programmes, we recommend that identity of mosses and other bryophytes be established by molecular techniques, in particular barcoding of the trnL-F intron." (source : auteurs) Type de publication : périodique Référence biblio : Rowntree J.-K., Cowan R., Leggett M., Fay M., 2010 - Which moss is which ? Identification of the threatened moss Orthodontium gracile using molecular and morphological techniques. Conservation Genetics, 11 : 1033-1042. ID PMB : 71712 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=71712 [article]

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