Traditional Knowledge and Genetic Diversity of Opuntia Pilifera (Cactaceae) in the Tehuacan-Cuicatlan Valley, Mexico
Most studies of the genus Opuntia have focused on economically important species, and therefore more knowledge concerning the genetic diversity among wild and locally managed Opuntia species is needed for an expanded use of cacti in the future. The present study is part of ongoing ethnobotanical wor...
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Published in | Economic botany Vol. 59; no. 4; pp. 366 - 376 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
01.08.2005
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Subjects | |
Online Access | Get full text |
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Summary: | Most studies of the genus Opuntia have focused on economically important species, and therefore more knowledge concerning the genetic diversity among wild and locally managed Opuntia species is needed for an expanded use of cacti in the future. The present study is part of ongoing ethnobotanical work in the Tehuacan-Cuicatlan Valley of Mexico and focuses on six traditionally classified forms of Opuntia pilifera used as food by the indigenous Popoloca people in San Juan Atzingo. Traditional knowledge of how to distinguish these forms based on fruit flavor, color, size, and number of spines on the fruits and cladodes is preserved in the local community. Genetic fingerprinting with 129 AFLPs did not correlate with this traditional morphological classification of 67 cacti. Yet, these AFLPs distinguished the analyzed 67 Opuntia pilifera cacti easily from the out-group comprising 17 wild Opuntia velutina.Original Abstract: La mayoria de los estudios sobre genetica de poblaciones del genero Opuntia (Cactaceae) se han enfocado en las especies economicamente importantes, por lo que es necesario un mayor conocimiento de la diversidad genetica cuando se compara entre las especies silvestres y las especies cultivadas localmente, esto con el fin de ampliar a futuro el uso de las cactaceas. El presente trabajo forma parte de un estudio etnobotanico mas amplio llevado a cabo en el Valle de Tehuacan-Cuicatlan, Mexico, y se centra en seis formas tradicionales de clasificar a Opuntia pilifera, cactacea usada como alimento por los indigenas Popolocas de San Juan Atzingo. El metodo tradicional para distinguir entre dichas formas es parte del conocimiento tradicional de la comunidad Popoloca y estabasado en el sabor del fruto, el color, el tamano y en el numero de espinas del fruto y de los cladodios. Las huellas geneticas con 129 AFLPs no estan correlacionadas con la clasificacion morfologica tradicional. No obstante, los AFLPs distinguieron facilmente entre los 67 individuos de Opuntia pilifera y los 17 individuos silvestres de Opuntia velutina que conformaron al grupo externo. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 content type line 23 ObjectType-Feature-2 |
ISSN: | 0013-0001 |
DOI: | 10.1043/0013-0001(2005)059[0366:TKAGDO]2.0.CO;2 |