La diversificación de las cícadas y la biodiversidad tropical [PDF]
, 2012 The recent unexpected discovery that living Cycadales are not Jurassic-Cretaceous (200– 65 Mya) relicts, as all their extant genera began to diversify during the Late Miocene (12 Mya), has challenged a classical evolutionary myth.
Rull, V.
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Amplified fragment length polymorphism (AFLP) studies on Indian Cycas species [PDF]
, 2013 Amplified fragment length polymorphism (AFLP) technology was used to reveal the genetic variation in six species of Cycas collected from eleven natural populations.
Radha, P, Singh, R
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A New Species of Ceratozamia (Zamiaceae, Cycadales) from Chiapas, Mexico
Novon, 1999 A new species of cycad, Ceratozamia alvarezii (Zamiaceae) from Chiapas, is described and illustrated. This species has affinities with C. matudai from Chiapas and C. sabatoi from Quere- taro and Hidalgo. It differs from these species with regard to trunk, leaf habit, and male and female cones. It differs from C.
Miguel A. Perez-Farrera +2 more
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Strobilus and seed production of Dioon edule (Zamiaceae) in a population with low seedling density in San Luis Potosí, Mexico [PDF]
, 2013 "We describe strobilus and seed development in a Dioon edule (chamal, palma, dameu') population characterized by low seedling and high adult tree density, in order to improve conservation decisions for this endangered cycad species.
Flores Rivas, Joel David +1 more
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Review of \u3ci\u3ePharaxonotha\u3c/i\u3e Reitter (Coleoptera: Erotylidae: Pharaxonothinae) inhabiting the cycad genus \u3ci\u3eDioon\u3c/i\u3e Lindl. (Cycadales), with descriptions of nine new species and comments on \u3ci\u3eP. kirschii\u3c/i\u3e Reitter [PDF]
, 2022 The beetle genus Pharaxonotha Reitter (Coleoptera: Erotylidae: Pharaxonothinae) is found in the cones of cycad genera in the New World, including species of Dioon Lindl., Ceratozamia Brongn., Microcycas (Miq.) A.DC and Zamia L.
Pérez-Farrera, Miguel Angel +2 more
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MARCADORES RAPDs ASOCIADOS A LA EXPRESIÓN DEL SEXO EN Ceratozamia mexicana Brongniart (Zamiaceae)
Revista Chapingo: Serie Ciencias Forestales y del Ambiente, 2010 Ceratozamia mexicana Brongniart es una especie estrictamente dioica con un largo estadio juvenil. Con el fin de detectar marcadores moleculares asociados al azar (RAPD) y al análisis masal segregante (BSA), se trabajó con muestras de tejido foliar de ...
L. Iglesias-Andreu +4 more
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Las plantas vasculares endémicas de Veracruz: análisis de 30 años de conocimiento
Botanical SciencesAntecedentes: Desde 1994 se han publicado cinco listados y una base de datos que incluyen a las plantas endémicas de Veracruz, sin embargo, estos presentan notables discrepancias entre sí.
María Guadalupe Ruiz Gómez +2 more
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Tropical and Subtropical Agroecosystems, 2012 Vegetal populations are affected by biotic and abiotic factors that influence the regeneration processes. The aims of this study were to know the population structure of Ceratozamia mexicana under two contrasting conditions (conserved site and disturbed ...
Andrés Rivera-Fernández +5 more
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A new species of Pharaxonotha (Coleoptera: Erotylidae) : probable pollinator of the endangered Cuban cycad, Microcycas calocoma (Zamiaceae) [PDF]
, 2005 The new species Pharaxonotha esperanzae (Coleoptera: Cucujoidea: Erotylidae: Pharaxonothinae) is described. It feeds on the pollen of the endangered Cuban cycad Microcycas calocoma (Miq.) A. DC. and breeds in its male cones.
Chavez, Ramiro, Genaro, Julio A.
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Revista Mexicana de Biodiversidad, 2012 Phylogenetic relationships among closely related plant species are still problematic. DNA intergenic regions often are insufficiently variable to provide desired resolution or support. In this study, a modification to the Sequence Characterized Amplified
Dolores González, Andrew P. Vovides
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