Cryptic diversity, sympatry, and other integrative taxonomy scenarios in the Mexican Ceratozamia miqueliana complex (Zamiaceae)

Martínez‐Domínguez, Lilí; Nicolalde‐Morejón, Fernando; Vergara‐Silva, Francisco; Stevenson, Dennis Wm.; Callejo, Enrique del

doi:10.1007/s13127-017-0341-7

Cited by 16 publications

(22 citation statements)

References 65 publications

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“…This study recorded the presence of the species in other vegetation types and localities that differed from those mentioned in the literature (Mart ınez-Dom ınguez et al, 2017;Vovides & Nicolalde-Morej on, 2010), such as the transition between tropical and oak forest in the locality of San Mart ın Pajapan, as well as the only fragment of humid montane forest in the state of Tabasco (Carvajal-Herna´ndez et al, 2018). In principle, the increase in the number of recorded localities generates knowledge of a greater number of individuals than has been estimated to date, which is beneficial for the species.…”

Section: Conservation Statusmentioning

confidence: 98%

“…The distribution of C. miqueliana is limited to southeastern Mexico, in the states of Chiapas, Tabasco and Veracruz, where it inhabits tropical high evergreen and mixed deciduous forests from 0 to 1000 m asl (Mart ınez-Dom ınguez et al, 2017;. However, it is also found in tropical montane cloud forest, as well as in transition zones between tropical forest and oak forest at elevations exceeding 600 m asl (Castillo-Campos et al, 2011;Carvajal-Herna´ndez et al, 2018).…”

Section: Study Areamentioning

confidence: 99%

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Different Criteria for Evaluation of the Conservation Status of Ceratozamia Miqueliana (Zamiaceae)

Carvajal‐Hernández

Juárez-Fragoso

Armenta-Montero

et al. 2020

Tropical Conservation Science

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Ceratozamia miqueliana is a cycad (Zamiaceae) species endemic to southeastern Mexico. It is currently listed on the International Union for Conservation of Nature (IUCN) Red List as “Critically Endangered” and under Mexican law as “Endangered”. The objective was to complement the evaluation of C. miqueliana based on criterion B of the IUCN, and the method proposed by the Mexican Norm. This information is in turn reinforced with the potential distribution model. We collected data from different herbaria and field visits and obtained the EOO and AOO using GIS and the GeoCat portal, the distribution of the species was modeled using the Maxent program. According to the IUCN guidelines (Geographic distribution, Criterion B) and Mexican law, the species could be considered Endangered and Subject to Special Protection, respectively. The comparison of AOO and EOO obtained by GIS and the GeoCat portal show that both methodologies used coincide in assigning the same categories based on geographic criteria. The integration of the potential distribution helps to identify the environmental factors that influence its habitat, in addition to identifying the ideal sites for its conservation. Is necessary to carry out evaluations of microendemic species such as Ceratozamia miqueliana from different approaches (populations, geographic aspects and habitat evaluation) to obtain more precise results. C. miqueliana must be protected by national and international laws.

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Section: Conservation Statusmentioning

confidence: 98%

Section: Study Areamentioning

confidence: 99%

Different Criteria for Evaluation of the Conservation Status of Ceratozamia Miqueliana (Zamiaceae)

Carvajal‐Hernández

Juárez-Fragoso

Armenta-Montero

et al. 2020

Tropical Conservation Science

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“…In particular, there are some populations in Oaxaca and Chiapas that still await closer inspection. In the present work, 31 species have been recognized for the genus (Stevenson et al 1986;Nicolalde-Morejón et al 2014;Vovides et al 2016;Pérez-Farrera et al 2017;Martínez-Domínguez et al 2017, 2018a, with C. becerrae and C. microstrobila treated as synonyms of C. zoquorum and C. latifolia, respectively (Stevenson et al 1986;Martínez-Domínguez et al 2017, 2018a.…”

Section: Discussionmentioning

confidence: 89%

“… Ceratozamia is easily diagnosed by the presence of two horns at the distal end of the sporophylls ( Norstog and Nicholls 1997 ). This genus is one of the most complex morphological assemblages within the family Zamiaceae , because some of its species show considerable intrapopulation variation and most characters commonly used to diagnose species in other cycad genera are polymorphic ( Martínez-Domínguez et al 2017 ). Taxonomic and molecular systematic studies have contributed to clarify species identification and to provide taxonomic revisions with keys at the regional level (e.g.…”

Section: Introductionmentioning

confidence: 99%

A novelty in Ceratozamia (Zamiaceae, Cycadales) from the Sierra Madre del Sur, Mexico: biogeographic and morphological patterns, DNA barcoding and phenology

Martínez‐Domínguez¹,

Nicolalde‐Morejón²,

Lorea-Hernández³

et al. 2020

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Ceratozamia is a genus of cycads occurring in eastern Mexico and Central America. In this study, we describe a new species from the Pacific region of Mexico in Guerrero state. This locality represents the most northwestern Mexico distribution for the genus. We focus the comparison of this species with the most geographically proximate and phenotypically relevant lineages for this taxon. We followed an integrative taxonomy approach to evaluate the classification of these species, including geographic location, morphology, DNA barcoding and phenology as primary sources of systematic data. Within the morphological dataset, reproductive structures are described in detail and new characters are proposed for microsporophylls. The comparative morphology of these structures facilitated the elucidation of differences in forms and species for identification. The two chosen DNA barcoding markers – namely, the chloroplast genome coding region matK and the nuclear ribosomal internal transcribed spacer (ITS) region – had low divergence, allowing only 61% of species identification, suggesting slow molecular evolutionary rates. Besides employing these three basic sources of evidence, we introduced phenology as additional information for species circumscription. In addition, this work includes a brief review of the genus at the species-level. This is therefore the most recent review for Ceratozamia across its full geographic range (latitudinal and elevational). Overall, this work further contributes to a comprehensive framework for systematic studies in Mexican cycads.

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“…However, other contemporary studies have shown that these characters can be highly variable between and amongst populations, which limits species diagnosis (Martínez-Domínguez et al 2016; 2017a, b, c). Other characters commonly used are the direction, form and texture of leaflets and the formation of prickles (Pérez-Farrera et al 2001; Vovides et al 2003).…”

Section: Introductionmentioning

confidence: 99%

Taxonomic review of Ceratozamia (Zamiaceae) in the Sierra Madre Oriental, Mexico

Martínez‐Domínguez¹,

Nicolalde‐Morejón²,

Vergara‐Silva³

et al. 2018

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The genus Ceratozamia is revised for the Sierra Madre Oriental in Mexico. This region is one of the biogeographic areas with the greatest diversity of species in this genus. These species are highly variable morphologically and this variability has led to a complex taxonomic history with many synonyms, particularly with reference to C. mexicana. We present a comprehensive taxonomic revision with history of nomenclature and the morphology, relationships, distribution and use of these species. We also introduce a key for their identification, descriptions, full synonymy, nomenclatural notes, etymologies and neotypes as well as taxonomic comments describing relevant taxonomic changes. We recognise fourteen species in this biogeographic province: C. brevifrons, C. chamberlainii, C. decumbens, C. delucana, C. fuscoviridis, C. hildae, C. kuesteriana, C. latifolia, C. mexicana, C. morettii, C. sabatoi, C. tenuis, C. totonacorum and C. zaragozae. This study provides a foundation for future taxonomic work in Neotropical species of Ceratozamia.

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Cryptic diversity, sympatry, and other integrative taxonomy scenarios in the Mexican Ceratozamia miqueliana complex (Zamiaceae)

Cited by 16 publications

References 65 publications

Different Criteria for Evaluation of the Conservation Status of Ceratozamia Miqueliana (Zamiaceae)

Different Criteria for Evaluation of the Conservation Status of Ceratozamia Miqueliana (Zamiaceae)

A novelty in Ceratozamia (Zamiaceae, Cycadales) from the Sierra Madre del Sur, Mexico: biogeographic and morphological patterns, DNA barcoding and phenology

Taxonomic review of Ceratozamia (Zamiaceae) in the Sierra Madre Oriental, Mexico

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