Abstract
New data on the placenta and water-conducting cells of Oedipodium griffithianum challenge current ideas on moss phylogeny. The placental region in O. griffithianum consists of cells with highly convolute wall labyrinths on both the sporophytic and gametophytic side. This type of placenta distinguishes an assemblage of mosses including Tetraphis, Buxbaumia and all arthrodontous mosses but is not found in basal lineages including polytrichopsid mosses. Other features that distinguish Oedipodium from polytrichopsid mosses are the foot entirely ensheathed by the parenchymatous tissue of the gametophyte vaginula, the lack of a necrotic foot tip, the lack of intercellular spaces in the foot parenchyma and the presence of typical bryopsid hydroids with uniformly thin cell walls in the leafy shoot. These results do not support molecular phylogenies resolving Oedipodium as the sister group to polytrichopsid mosses or to all peristomate mosses, but are compatible with a sister relationship to a clade encompassing Tetraphis, Buxbaumia and arthrodontous mosses.
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References
Alfayate C, Estébanez B, Ron E (2000) The sporophyte–gametophyte junction in five species of pleurocarpous mosses. Bryologist 103:467–474
Bell NE, Hyvönen J (2008) Rooting the Polytrichopsida: the phylogenetic position of Atrichopsis and the independent origin of the polytrichopsid peristome. In: Mohamed H, Baki BB, Nasrulhaq-Boyce A, Lee PKJ (eds) Bryology in the New Millenium. University of Malaya, Kuala Lumpur, pp 227–239
Carafa A, Duckett JG, Ligrone R (2003) The placenta in Monoclea forsteri Hook and Treubia lacunosa (Col.) Prosk: insights into placental evolution in liverworts. Ann Bot 92:299–307
Cox CJ, Goffinet B, Shaw J, Boles SB (2004) Phylogenetic relationships among the mosses based on heterogeneous bayesian analysis of multiple genes from multiple genomic comparments. Syst Bot 29:234–250
Cox CJ, Goffinet B, Wickett NJ, Boles SB, Shaw AJ (2010) Moss diversity: a molecular phylogenetic analysis of genera. Phytotaxa 9:175–195
Crum HA (2007) Oedipodiaceae. In: Zander RH (ed) Flora of North America, vol 27. Missouri Botanical Gardens Press, St. Louis, Missouri, USA, pp 116–117
Duckett JG, Ligrone R (2003) The structure and development of haustorial placentas in leptosporangiate ferns provide a clear-cut distinction between euphyllophytes and lycophytes. Ann Bot 92:513–521
Forrest LL, Davis EC, Long DG, Crandall-Stotler BJ, Clark A, Hollingsworth ML (2006) Unraveling the evolutionary history of the liverworts (Marchantiophyta): multiple taxa, genomes and analyses. Bryologist 109:303–334
Frey W, Hofmann M, Hilger HH (2001) The gametophyte–sporophyte junction: unequivocal hints for two evolutionary lines of archegoniate land plants. Flora 196:431–445
Frey W, Stech M, Fisher E (2009) Syllabus of Plant Families, Part 3, Bryophytes and seedless Vascular Plants. Gebrüder Borntraeger Verlagsbuchhandlung, Berlin
Goffinet B, Buck W (2004) Systematics of the Bryophyta (mosses): from molecules to a revised classification. In: Goffinet B, Hollowell V, Magill R (eds) Molecular Systematics of Bryophytes. Missouri Botanical Gardens Press, St. Louis, MO, pp 205–239
Goffinet B, Cox CJ, Shaw AJ, Hedderson TAJ (2001) The Bryophyta (mosses): systematic and evolutionary inferences from an rps4 gene (cpDNA) phylogeny. Ann Bot 87:191–208
Goffinet B, Wickett NJ, Shaw AJ, Cox CJ (2005) Phylogenetic significance of the rpoA loss in the chloroplast genome of mosses. Taxon 54:353–360
Goffinet B, Buck W, Shaw J (2009) Morphology, anatomy and classification of the Bryophyta. In: Goffinet B, Shaw J (eds) Bryophyte biology. Cambridge University Press, Cambridge, pp 55–138
Heinrichs J, Gradstein SR, Wilson R, Schneider H (2005) Towards a natural classification of liverworts (Marchantiophyta) based on the chloroplast gene rbcL. Cryptog Bryol 26:131–150
Hyvönen J, Hedderson TA, Smith Merryll GL, Gibbings JG, Koskinen S (1998) On phylogeny of the polytrichales. Bryologist 101:489–504
Hyvönen J, Koskinen S, Smith Merryll GL, Hedderson TA, Stenroos S (2004) Phylogeny of the polytrichales (Bryophyta) based on simultaneous analysis of molecular and morphological data. Mol Phylog Evol 31:915–928
Ligrone R, Gambardella R (1988) The sporophyte–gametophyte junction in bryophytes. Adv Bryol 3:225–274
Ligrone R, Gambardella R, Castaldo R, Giordano S, De Lucia Sposito ML (1982a) Gametophyte and sporophyte ultrastructure in Buxbaumia piperi Best (Buxbaumiales, Musci). J Hattori Bot Lab 52:465–499
Ligrone R, Gambardella R, De Lucia Sposito ML (1982b) Ultrastructure of the sporophyte foot-gametophyte vaginula complex in Timmiella barbuloides (Brid.) Moenk. Planta 154:414–425
Ligrone R, Duckett JG, Renzaglia KS (1993) The gametophyte–sporophyte junction in land plants. Adv Bot Res 19:231–317
Ligrone R, Duckett JG, Renzaglia KS (2000) Conducting tissues and phyletic relationships of bryophytes. Phil Trans R Soc London B 355:795–813
Ligrone R, Vaughn KC, Renzaglia KS, Knox JP, Duckett JG (2002) Diversity in the distribution of polysaccharide and glycoprotein epitopes in the cell walls of bryophytes: new evidence for multiple evolution of water-conducting cells. New Phytol 156:491–508
Magombo ZLK (2003) The phylogeny of basal peristomate mosses: evidence from cpDNA, and implications for peristome evolution. Syst Bot 28:24–38
Newton AE, Cox CJ, Duckett JG, Wheeler JA, Goffinet B, Hedderson TAJ, Mishler BD (2000) Evolution of the major moss lineages: phylogenetic analyses based on multiple gene sequences and morphology. Bryologist 103:187–211
Qiu YL et al (2006) The deepest divergences in land plants inferred from phylogenomic evidence. PNAS 103:15511–15516
Qiu YL et al (2007) A non-flowering land plant phylogeny inferred from nucleotide sequences of seven chloroplast, mitochondrial, and nuclear genes. Int J Plant Sci 168:691–708
Renzaglia KS, Schuette S, Duff RJ, Ligrone R, Shaw AJ, Mishler BD, Duckett JG (2007) Bryophyte phylogeny: advancing the molecular and morphological frontiers. Bryologist 110:179–213
Renzaglia KS, Villareal JC, Duff RJ (2009) New insights into morphology, anatomy, and systematics of hornworts. In: Goffinet B, Shaw J (eds) Bryophyte biology. Cambridge University Press, Cambridge, pp 139–171
Robinson H, Shaw J (1984) Considerations on the evolution of the moss operculum. Bryologist 87:293–296
Rushing AE (1999) The mature sporophyte–gametophyte junction of Lorentziella imbricata. Bryologist 102:92–98
Rushing AE, Anderson WB (1996) The sporophyte–gametophyte junction in the moss Acaulon muticum (Pottiaceae): early stages of development. Am J Bot 83:1274–1281
Sugita M, Sugiura C, Arikawa T, Higuchi M (2004) Molecular evidence of an rpoA gene in the basal moss chloroplast genomes: rpoA is a useful molecular marker for phylogenetic analysis of mosses. Hikobia 14:171–175
Sugiura C, Kobayashi Y, Aoki S, Sugita C, Sugita M (2003) Complete chloroplast DNA sequence of the moss Physcomitrella patens: evidence for the loss and relocation of rpoA from the chloroplast to the nucleus. Nucleic Acids Res 31:5324–5331
Vitt DH (1981) Adaptive modes of the moss sporophyte. Bryologist 84:166–186
Vitt DH (1984) Classification of the bryopsida. In: Schuster RM (ed) New manual of bryology, vol 2. Hattori Botanical Laboratory, Nichinan, pp 696–759
Wickett NJ, Goffinet B (2008) Origin and relationships of the myco-heterotrophic liverwort Cryptothallus mirabilis Malmb (Metzgeriales, Marchantiophyta). Bot J Linn Soc 156:1–12
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This research was supported by a grant from Provincia di Caserta (“Orto Botanico” project).
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Ligrone, R., Duckett, J.G. Morphology versus molecules in moss phylogeny: new insights (or controversies) from placental and vascular anatomy in Oedipodium griffithianum . Plant Syst Evol 296, 275–282 (2011). https://doi.org/10.1007/s00606-011-0496-1
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DOI: https://doi.org/10.1007/s00606-011-0496-1