Relationships and phytogeography in
            <i>Ceratozamia</i>
            (Zamiaceae).

Vovides, Andrew P.; Pérez‐Farrera, Miguel Ángel; González, Dolores; Avendaño, Sergio; Walters, Terrence W.; Osborne, Richard W.

doi:10.1079/9780851997414.0109

Cited by 28 publications

(36 citation statements)

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“…Vovides 730,731,732,733 (XAL) Vovides (2002, 2012) and an overall review by Vovides et al (2004) reported that the C. mexicana species complex may be of recent speciation along with the C. kuesteriana species complex in northeastern México above the Transvolcanic Mexican Belt also known as the Mexican transition zone (Contreras-Medina et al, 2007). Molecular phylogenetic relationships among closely related plant species are problematic, both nuclear ribosomal DNA ITS and chloroplast DNA trnL-F non-coding region (González and Vovides, 2002) and a modification to the Sequence Characterized Amplified Region (SCAR) method (González and Vovides, 2012) on the genus Ceratozamia showed a similar and unresolved topology in the clade grouping both the C. mexicana and the C. zaragozae species complexes at and to the north of the Mexican Transvolcanic Mexican Belt respectively.…”

Section: Ceratozamia Mexicanamentioning

confidence: 99%

What is Ceratozamia mexicana (Zamiaceae)?

Vovides¹,

Stevenson²,

Pérez‐Farrera³

et al. 2016

Bot. Sci.

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Explorations in central Veracruz on the Transvolcanic Mexican Belt and regions explored by 19th century botanists we found various populations of Ceratozamia whose taxonomic status is not yet completely clear. Especially two populations of C. mexicana with distinct morphology; one population at El Esquilón considered as C. mexicana by Chamberlain and other authors, and another population at El Mirador that Stevenson found a voucher at the herbarium in Paris with oblanceolate leaflets collected by Ghiesbrecht and designated it as Brongniart's holotype. The plants from El Mirador are comparable to the holotype of C. mexicana, but those at El Esquilón do not. Stevenson later also found a voucher at Kew by Thiselton-Dyer as C. mexicana var. tenuis from Mexico with linear-lanceolate leaflets that is similar to the plants at the El Esquilón population. An analysis of 11 leaflet anatomical characters gave a significant discriminant pattern (Wilk's lambda 0.00015 P < 0.01). The squared Mahalanobis distances were also significant (P < 0.05) and the first canonic variable showed that 93.4 % of the variation was due to the anatomical characters. A new nomenclatural combination is proposed and Thiselton-Dyer's voucher assigned as the lectotype of Ceratozamia tenuis. Epitypes were also designated for the two species in support of the anatomical analysis as well as a description for both species given.

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Section: Ceratozamia Mexicanamentioning

confidence: 99%

What is Ceratozamia mexicana (Zamiaceae)?

Vovides¹,

Stevenson²,

Pérez‐Farrera³

et al. 2016

Bot. Sci.

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“…En el caso de algunas especies de Zamiaceae de México se han logrado avances importantes en el conocimiento de su biogeografía Gregory y Chemnick, 2004;Vovides et al, 2004), sistemática (Vovides, 1983;Vovides et al, 1983;Vovides, 1985;Bogler y Francisco-Ortega, 2004;Schutzman, 2004;Nicolalde-Morejón, 2005), ecología (Vovides, 1990;Lázaro-Zermeño, 2002;Sánchez-Ramos et al, 2002;Vovides et al, 2003;Pérez-Farrera y Vovides, 2004;Pérez-Farrera et al, 2006;Lázaro-Zermeño et al, 2011), genética (Pérez-Farrera et al, 2007;Flores-Vázquez, 2008;Cabrera Toledo, 2009;Octavio-Aguilar, 2009), fisiología (Vovides et al, 2002a) y etnobotánica (Pérez-Farrera y Vovides, 2006;Valdez, 2009). Las poblaciones de Dioon merolae De Luca, Sabato y Vázquez-Torres (De Luca et al, 1981), y de otras Cycadales en México, se encuentran severamente amenazadas por cambios en el uso del suelo, por incendios y pastoreo derivados de las actividades humanas, y por prácticas de extracción inadecuadas de partes o individuos completos (Challenger, 1998; Pérez-Farrera y Vovides, 2006;Naranjo et al, 2009).…”

unclassified

Historia natural de Dioon Merolae (Zamiaceae)en Chiapas, México

et al. 2012

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Resumen: Se recopilan observaciones sobre la espadaña (Dioon merolae, Zamiaceae) de la Depresión Central (530-600 m) y de la Sierra Madre de Chiapas (1,100-1,200 m). Se visitaron entre 1997 y 2010 más de 800 individuos de distintos tamaños y en todas las etapas fenológicas. Se revisan las relaciones filogenéticas y distribución de D. merolae. A la descripción botánica original se agregan observaciones originales que permiten una mejor comprensión de sus relaciones ecológicas. Se revisa el crecimiento de los tallos desde la etapa de plántula hasta la etapa adulta, la producción de retoños en la base de los tallos, el crecimiento de la raíz, y la producción de hojas, estróbilos y semillas. Se discuten las interacciones entre esta especie vegetal y varios grupos animales implicados en la polinización, herbivoría y dispersión y depredación de las semillas. Se discute el efecto de incendios ocasionales sobre la supervivencia y la reproducción, así como la considerable longevidad y estimación de la edad de D. merolae. La especie enfrenta actualmente severos problemas para su conservación debido a una ceremonia religiosa popular que implica la defoliación completa (a veces parcial) de individuos adultos. Se discuten las implicaciones de esta práctica y algunas recomendaciones para el uso sustentable de la especie. Palabras clave: Cycadales, espadaña, Eumaeus, fitómeros, Liomys. Abstract:We compiled observations from six populations of Dioon merolae (Zamiaceae) located in the Central Depression (530-600 m) and the Sierra Madre of Chiapas (1,100-1,200 m). More than 800 individuals of different size and in all phenological stages were visited during 1997 and 2010. A revision of the phylogenetical relationships and distribution of D. merolae is included, along with a botanical description complemented with original observations. The growth of stems is described from seedlings up to adult plants, as well as the production of basal suckers, root growth, and the production of leaves, strobili and seeds. Plant-animal interactions involved in pollination, herbivory, and seed dispersal and predation are described. The effects of occasional wild fires on survival and reproduction are discussed, as well as the longevity and age estimation of this long-lived species. D. merolae populations are severely threatened due to a local religious ceremony in which adult plants are heavily or almost completely (sometimes partially) defoliated. The conservation implications of this practice are discussed.

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“…Studies in this particular biological area have traditionally attempted to understand the role of natural selection, gene flow, inbreeding, and genetic drift, and aimed to determine how these processes have influenced adaptation and organismal distribution and abundance. In plant species, phenotypic and genetic differentiation between populations that occupy environmental mosaics was demonstrated experimentally for the first time by Turesson (1922) and the existence of ecotypes across environmental gradients has been reported in several studies (Stebbins, 1950;Grant & Wilken, 1988;Stevenson, Sabato & V azquez-Torres, 1986; Gonz alez-Astorga, Vovides & Iglesias, 2003a;Gonz alez-Astorga et al, 2003b;Vovides et al, 2004a).…”

Section: Introductionmentioning

confidence: 96%

“…In the context of the present study, we highlight the proposal by Vovides et al (2004a) of a complex that includes C. mexicana, restricted to the eastern slope of the Trans-Mexican Volcanic Belt. In the face of divergent taxonomic proposals regarding the identity and geographical distribution of the populations and species associated with C. mexicana, recognition of the biological boundaries of this species becomes particularly difficult (Moretti et al, 1980;Vovides et al, 2004a, b;Chemnick et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Morphometric and geographical variation in theCeratozamia mexicanaBrongn. (Zamiaceae) complex: evolutionary and taxonomic implications

Medina‐Villarreal

González‐Astorga

2016

Biol. J. Linn. Soc.

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The Cycadales contain 11 nonproblematic genera and approximately 331 species where, in a number of cases, delimitation and circumscription is not so clear. Ceratozamia, the most diverse cycad genus in Mexico, clearly illustrates this situation because a large percentage (close to 70%) of the 28 currently valid species in the genus was recently described on the basis of inconspicuous differences. We evaluated population-level morphological variation (i.e. phenotype) in related plants of Ceratozamia that share geological and ecological units, seeking a refined taxonomic assessment of their populations in an explicitly evolutionary context. The populations/species of interest included the type species Ceratozamia mexicana, as well as the taxa Ceratozamia brevifrons, Ceratozamia decumbens, and Ceratozamia morettii. Data analysis was performed using uni-and multivariate techniques on morphological variability, which showed statistically significant differences. The characters 'leaflet width' and 'leaflet shape' supported diagnostic distinctions between groups of populations, and implied a classificatory rearrangement with nomenclatural consequences. This research is an initial step in the detailed, statistics-oriented study of phenotypic variation in the Ceratozamia populations of central Veracruz in Mexico that will allow the construction of evolutionary hypotheses in the context of phylogeography and historical demography.

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Relationships and phytogeography in Ceratozamia (Zamiaceae).

Cited by 28 publications

References 0 publications

What is Ceratozamia mexicana (Zamiaceae)?

What is Ceratozamia mexicana (Zamiaceae)?

Historia natural de Dioon Merolae (Zamiaceae)en Chiapas, México

Morphometric and geographical variation in theCeratozamia mexicanaBrongn. (Zamiaceae) complex: evolutionary and taxonomic implications

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