Relationships among teosinte populations (Zea spp.) from Mexico, Guatemala and Nicaragua
Teosinte populations representing all known races, species and subspecies were characterized in order to better understand their relationships and contribute to resolve the taxonomy of the genus Zea. Ninety-five teosinte accessions were grown during the summer of 2011 under greenhouse conditions at...
| Autores principales: | , , , , , , |
|---|---|
| Formato: | Online |
| Lenguaje: | spa |
| Publicado: |
Instituto de Ecología, A.C.
2015
|
| Acceso en línea: | https://abm.ojs.inecol.mx/index.php/abm/article/view/185 |
| _version_ | 1799771071582306304 |
|---|---|
| author | Torres Peña, Guadalupe De la Cruz Larios, Lino Sánchez González, José de Jesús Ruiz Corral, José Ariel Castañeda Nava, José Juvencio Santacruz-Ruvalcaba, Fernando Miranda Medrano, Roberto |
| author_facet | Torres Peña, Guadalupe De la Cruz Larios, Lino Sánchez González, José de Jesús Ruiz Corral, José Ariel Castañeda Nava, José Juvencio Santacruz-Ruvalcaba, Fernando Miranda Medrano, Roberto |
| author_sort | Torres Peña, Guadalupe |
| collection | ABM |
| description | Teosinte populations representing all known races, species and subspecies were characterized in order to better understand their relationships and contribute to resolve the taxonomy of the genus Zea. Ninety-five teosinte accessions were grown during the summer of 2011 under greenhouse conditions at the Centro Universitario de Ciencias Biológicas y Agropecuarias (CUCBA). Eighteen morphological and physiological characters as well as 21 climatic descriptors were evaluated using Cluster Analysis and Principal Component Analysis (PCA). The combined data sets of morphological, physiological and climatic variables and the multivariate analysis helped to describe the complexity of the relationships between populations of different teosinte species and different geographical regions of Mexico and Central America. In addition to advancing the taxonomy of teosinte, the most important morphological and climatic variables defining the relationships were identified, based on the length of eigenvectors derived from PCA. The Balsas race of teosinte had the most variable morphology and adaptation. Within subsp. mexicana, the races Chalco, Nobogame and Durango are clearly differentiated. Results show that species, subspecies and race limits are as following: Zea nicaraguensis should be considered a subspecies of Zea luxurians, while Zea luxurians from Oaxaca and Zea diploperennis from Nayarit are two taxa different from the rest. Additionally, Durango is an independent race from the Mesa Central and subsp. parviglumis could be divided into two races, one including populations adapted to altitudes below 1000 m altitude, the others adapted to altitudes from 1000 to 1800 m above sea level. |
| format | Online |
| id | oai:oai.abm.ojs.inecol.mx:article-185 |
| institution | Acta Botanica Mexicana |
| language | spa |
| publishDate | 2015 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.abm.ojs.inecol.mx:article-1852022-12-23T04:56:55Z Relationships among teosinte populations (Zea spp.) from Mexico, Guatemala and Nicaragua Relaciones entre poblaciones de teocintle (Zea spp.) de México, Guatemala y Nicaragua Torres Peña, Guadalupe De la Cruz Larios, Lino Sánchez González, José de Jesús Ruiz Corral, José Ariel Castañeda Nava, José Juvencio Santacruz-Ruvalcaba, Fernando Miranda Medrano, Roberto morphological diversity numerical taxonomy Zea diversidad morfológica taxonomía numérica teocintle Zea Teosinte populations representing all known races, species and subspecies were characterized in order to better understand their relationships and contribute to resolve the taxonomy of the genus Zea. Ninety-five teosinte accessions were grown during the summer of 2011 under greenhouse conditions at the Centro Universitario de Ciencias Biológicas y Agropecuarias (CUCBA). Eighteen morphological and physiological characters as well as 21 climatic descriptors were evaluated using Cluster Analysis and Principal Component Analysis (PCA). The combined data sets of morphological, physiological and climatic variables and the multivariate analysis helped to describe the complexity of the relationships between populations of different teosinte species and different geographical regions of Mexico and Central America. In addition to advancing the taxonomy of teosinte, the most important morphological and climatic variables defining the relationships were identified, based on the length of eigenvectors derived from PCA. The Balsas race of teosinte had the most variable morphology and adaptation. Within subsp. mexicana, the races Chalco, Nobogame and Durango are clearly differentiated. Results show that species, subspecies and race limits are as following: Zea nicaraguensis should be considered a subspecies of Zea luxurians, while Zea luxurians from Oaxaca and Zea diploperennis from Nayarit are two taxa different from the rest. Additionally, Durango is an independent race from the Mesa Central and subsp. parviglumis could be divided into two races, one including populations adapted to altitudes below 1000 m altitude, the others adapted to altitudes from 1000 to 1800 m above sea level. Se caracterizaron detalladamente poblaciones representativas de todas las razas, especies y subespecies conocidas de teocintle a fin de entender mejor sus relaciones y contribuir a resolver la taxonomía del género Zea. Se sembraron 95 accesiones en condiciones de invernadero en el Centro Universitario de Ciencias Biológicas y Agropecuarias (CUCBA) en el verano del 2011. Con base en las plantas obtenidas de esta manera, así como de su procedencia, se evaluaron 18 caracteres morfológicos y fisiológicos y 21 variables climatológicas con análisis de agrupamiento y de componentes principales (ACP). El uso combinado de los datos obtenidos y los análisis multivariados permitieron describir la gran complejidad de las relaciones entre poblaciones de diferentes especies de teocintle y de diversas zonas geográficas de México y América Central. Además de avanzar en aspectos taxonómicos, fue posible identificar con claridad las variables de mayor importancia, con base en la longitud de los vectores característicos derivados del análisis de componentes principales. La raza Balsas mostró la mayor diversidad morfológica y de adaptación. Dentro de la subespecie mexicana, hay una clara separación de las razas Chalco, Nobogame y Durango. Con base en los resultados, los límites de especies, subespecies y razas de teocintle encontrados son los siguientes: Zea nicaraguensis debe considerarse una subespecie de Zea luxurians, mientras que Zea luxurians de Oaxaca y Zea diploperennis de Huajicori, Nayarit son taxa diferentes del resto. Asimismo, Durango se considera una raza independiente de Mesa Central, mientras que la subespecieparviglumis corresponde a al menos dos razas, poblaciones adaptadas a altitudes inferiores a 1000 m y aquellas distribuidas entre 1000 y 1800 m s.n.m. Instituto de Ecología, A.C. 2015-04-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion artículo evaluado por pares application/pdf text/html https://abm.ojs.inecol.mx/index.php/abm/article/view/185 10.21829/abm111.2015.185 Acta Botanica Mexicana; No. 111 (2015); 17-45 Acta Botanica Mexicana; Núm. 111 (2015); 17-45 2448-7589 0187-7151 spa https://abm.ojs.inecol.mx/index.php/abm/article/view/185/240 https://abm.ojs.inecol.mx/index.php/abm/article/view/185/241 Derechos de autor 2015 Acta Botanica Mexicana https://creativecommons.org/licenses/by-nc/4.0 |
| spellingShingle | Torres Peña, Guadalupe De la Cruz Larios, Lino Sánchez González, José de Jesús Ruiz Corral, José Ariel Castañeda Nava, José Juvencio Santacruz-Ruvalcaba, Fernando Miranda Medrano, Roberto Relationships among teosinte populations (Zea spp.) from Mexico, Guatemala and Nicaragua |
| title | Relationships among teosinte populations (Zea spp.) from Mexico, Guatemala and Nicaragua |
| title_full | Relationships among teosinte populations (Zea spp.) from Mexico, Guatemala and Nicaragua |
| title_fullStr | Relationships among teosinte populations (Zea spp.) from Mexico, Guatemala and Nicaragua |
| title_full_unstemmed | Relationships among teosinte populations (Zea spp.) from Mexico, Guatemala and Nicaragua |
| title_short | Relationships among teosinte populations (Zea spp.) from Mexico, Guatemala and Nicaragua |
| title_sort | relationships among teosinte populations (zea spp.) from mexico, guatemala and nicaragua |
| url | https://abm.ojs.inecol.mx/index.php/abm/article/view/185 |
| work_keys_str_mv | AT torrespenaguadalupe relationshipsamongteosintepopulationszeasppfrommexicoguatemalaandnicaragua AT delacruzlarioslino relationshipsamongteosintepopulationszeasppfrommexicoguatemalaandnicaragua AT sanchezgonzalezjosedejesus relationshipsamongteosintepopulationszeasppfrommexicoguatemalaandnicaragua AT ruizcorraljoseariel relationshipsamongteosintepopulationszeasppfrommexicoguatemalaandnicaragua AT castanedanavajosejuvencio relationshipsamongteosintepopulationszeasppfrommexicoguatemalaandnicaragua AT santacruzruvalcabafernando relationshipsamongteosintepopulationszeasppfrommexicoguatemalaandnicaragua AT mirandamedranoroberto relationshipsamongteosintepopulationszeasppfrommexicoguatemalaandnicaragua AT torrespenaguadalupe relacionesentrepoblacionesdeteocintlezeasppdemexicoguatemalaynicaragua AT delacruzlarioslino relacionesentrepoblacionesdeteocintlezeasppdemexicoguatemalaynicaragua AT sanchezgonzalezjosedejesus relacionesentrepoblacionesdeteocintlezeasppdemexicoguatemalaynicaragua AT ruizcorraljoseariel relacionesentrepoblacionesdeteocintlezeasppdemexicoguatemalaynicaragua AT castanedanavajosejuvencio relacionesentrepoblacionesdeteocintlezeasppdemexicoguatemalaynicaragua AT santacruzruvalcabafernando relacionesentrepoblacionesdeteocintlezeasppdemexicoguatemalaynicaragua AT mirandamedranoroberto relacionesentrepoblacionesdeteocintlezeasppdemexicoguatemalaynicaragua |
