JOSÉ MARTÍN RAMÍREZ-ORTEGA1, EFRAÍN DE LUNA2
& ARTURO ESTRADA-TORRES3
jose.ramirez@posgrado.inecol.edu.mx
1Instituto de Ecología A.C. Posgrado, Km. 2.5 carr. Antigua a Coatepec 351
Congregación el Haya, Xalap a, Veracruz, 91070, México
2Departamento de Biodiversidad y Sistemática, Instituto de Ecología A.C.
Xalapa, Veracruz, 91070, México
3Centro de Investigación en Ciencias Biológicas, Universidad Autónoma de Tlaxcala
Ixtacuixtla, Tlaxcala, 90122, México
& ARTURO ESTRADA-TORRES3
jose.ramirez@posgrado.inecol.edu.mx
1Instituto de Ecología A.C. Posgrado, Km. 2.5 carr. Antigua a Coatepec 351
Congregación el Haya, Xalap a, Veracruz, 91070, México
2Departamento de Biodiversidad y Sistemática, Instituto de Ecología A.C.
Xalapa, Veracruz, 91070, México
3Centro de Investigación en Ciencias Biológicas, Universidad Autónoma de Tlaxcala
Ixtacuixtla, Tlaxcala, 90122, México
Mycotaxon. Volume 110, pp. 331-355. October-December 2009. PDF
Abstract – A cladistic study of the Cribrariaceae was performed to examine its phylogenetic position among the Myxomycetes based on a data matrix comprising 54 morphological characters and 55 exemplar myxomycete species. Parsimony ratchet with implied weighting was employed as tree search strategy. Results show the Cribrariaceae as a monophyletic group that includes Cribraria and Dictydium but not Lindbladia and suggest Trichiales as the sister group. Our analyses neither support Dictydium as a genus separated from Cribraria nor the Liceales as monophyletic. This is the first attempt to evaluate the phylogenetic relationships of this group using morphological characters from representative species of all Myxomycetes within a cladistic framework.
Keywords – Echinosteliales, Physarales, slime molds, Stemonitales, taxonomy.
Abstract – A cladistic study of the Cribrariaceae was performed to examine its phylogenetic position among the Myxomycetes based on a data matrix comprising 54 morphological characters and 55 exemplar myxomycete species. Parsimony ratchet with implied weighting was employed as tree search strategy. Results show the Cribrariaceae as a monophyletic group that includes Cribraria and Dictydium but not Lindbladia and suggest Trichiales as the sister group. Our analyses neither support Dictydium as a genus separated from Cribraria nor the Liceales as monophyletic. This is the first attempt to evaluate the phylogenetic relationships of this group using morphological characters from representative species of all Myxomycetes within a cladistic framework.
Keywords – Echinosteliales, Physarales, slime molds, Stemonitales, taxonomy.
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