Longitudinal analysis of maize diversity in Yucatan, Mexico: influence of agro-ecological factors on landraces conservation and modern variety introduction
Transformations that farmers bring to their traditional farming systems and their impacts on the conservation and evolution of maize varieties over a 12-year period are investigated using a longitudinal analysis. Despite the increased introduction and supply of improved maize variety seeds in the Yu...
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ftcgiar:oai:cgspace.cgiar.org:10568/68102 2024-01-07T09:45:36+01:00 Longitudinal analysis of maize diversity in Yucatan, Mexico: influence of agro-ecological factors on landraces conservation and modern variety introduction Fenzi, M. Jarvis, Devra I. Reyes, L.M.A. Moreno, L.L. Tuxill, J. 2015-09-09T12:50:11Z application/pdf https://hdl.handle.net/10568/68102 http://journals.cambridge.org/article_S1479262115000374 https://doi.org/10.1017/S1479262115000374 en eng Cambridge University Press Fenzi, M.; Jarvis, D.I.; Reyes, L.M.A.; Moreno, L.L.; Tuxill, J. (2015) Longitudinal analysis of maize diversity in Yucatan, Mexico: influence of agro-ecological factors on landraces conservation and modern variety introduction. Plant Genetic Resources: Characterization and Utilization. Online first paper. ISSN: 1479-263X 1479-263X https://hdl.handle.net/10568/68102 http://journals.cambridge.org/article_S1479262115000374 https://doi.org/10.1017/S1479262115000374 CC-BY-4.0 Open Access Plant Genetic Resources: Characterization and Utilization crops evolution genetic variation maize traditional farming varieties Journal Article 2015 ftcgiar https://doi.org/10.1017/S1479262115000374 2023-12-12T23:56:35Z Transformations that farmers bring to their traditional farming systems and their impacts on the conservation and evolution of maize varieties over a 12-year period are investigated using a longitudinal analysis. Despite the increased introduction and supply of improved maize variety seeds in the Yucatan Peninsula, Mexico, over the last 12 years farmers continue to maintain a substantial amount of traditional maize variety diversity. Even with the increased availability of hybrid seeds, farmers in the community of Yaxcaba on average plant more than three quarters of their milpa fields to traditional maize varieties, with the latter one fourth predominately planted to a locally improved variety Nal Xoy, a farm cross of a traditional variety and an improved variety. We observed a significant reduction in yellow – x-Nuuk nal, a long-cycle traditional landrace, paralleled by an increase in short- and intermediate-cycle locally adapted improved maize varieties. We found great differences in the distribution of maize varieties by soil type, with modern varieties being targeted for the rarer, deeper and fine-grained soils, while traditional varieties predominate on the more prevalent stony and thin soils. Our results provide a picture in which most traditional maize varieties in Yaxcaba continue to be maintained by farmers, coexisting with locally adapted improved varieties on the same landscape, and allowing the continued evolution of maize populations Article in Journal/Newspaper Nuuk CGIAR CGSpace (Consultative Group on International Agricultural Research) Nuuk ENVELOPE(-52.150,-52.150,68.717,68.717) Plant Genetic Resources 15 1 51 63 |
institution |
Open Polar |
collection |
CGIAR CGSpace (Consultative Group on International Agricultural Research) |
op_collection_id |
ftcgiar |
language |
English |
topic |
crops evolution genetic variation maize traditional farming varieties |
spellingShingle |
crops evolution genetic variation maize traditional farming varieties Fenzi, M. Jarvis, Devra I. Reyes, L.M.A. Moreno, L.L. Tuxill, J. Longitudinal analysis of maize diversity in Yucatan, Mexico: influence of agro-ecological factors on landraces conservation and modern variety introduction |
topic_facet |
crops evolution genetic variation maize traditional farming varieties |
description |
Transformations that farmers bring to their traditional farming systems and their impacts on the conservation and evolution of maize varieties over a 12-year period are investigated using a longitudinal analysis. Despite the increased introduction and supply of improved maize variety seeds in the Yucatan Peninsula, Mexico, over the last 12 years farmers continue to maintain a substantial amount of traditional maize variety diversity. Even with the increased availability of hybrid seeds, farmers in the community of Yaxcaba on average plant more than three quarters of their milpa fields to traditional maize varieties, with the latter one fourth predominately planted to a locally improved variety Nal Xoy, a farm cross of a traditional variety and an improved variety. We observed a significant reduction in yellow – x-Nuuk nal, a long-cycle traditional landrace, paralleled by an increase in short- and intermediate-cycle locally adapted improved maize varieties. We found great differences in the distribution of maize varieties by soil type, with modern varieties being targeted for the rarer, deeper and fine-grained soils, while traditional varieties predominate on the more prevalent stony and thin soils. Our results provide a picture in which most traditional maize varieties in Yaxcaba continue to be maintained by farmers, coexisting with locally adapted improved varieties on the same landscape, and allowing the continued evolution of maize populations |
format |
Article in Journal/Newspaper |
author |
Fenzi, M. Jarvis, Devra I. Reyes, L.M.A. Moreno, L.L. Tuxill, J. |
author_facet |
Fenzi, M. Jarvis, Devra I. Reyes, L.M.A. Moreno, L.L. Tuxill, J. |
author_sort |
Fenzi, M. |
title |
Longitudinal analysis of maize diversity in Yucatan, Mexico: influence of agro-ecological factors on landraces conservation and modern variety introduction |
title_short |
Longitudinal analysis of maize diversity in Yucatan, Mexico: influence of agro-ecological factors on landraces conservation and modern variety introduction |
title_full |
Longitudinal analysis of maize diversity in Yucatan, Mexico: influence of agro-ecological factors on landraces conservation and modern variety introduction |
title_fullStr |
Longitudinal analysis of maize diversity in Yucatan, Mexico: influence of agro-ecological factors on landraces conservation and modern variety introduction |
title_full_unstemmed |
Longitudinal analysis of maize diversity in Yucatan, Mexico: influence of agro-ecological factors on landraces conservation and modern variety introduction |
title_sort |
longitudinal analysis of maize diversity in yucatan, mexico: influence of agro-ecological factors on landraces conservation and modern variety introduction |
publisher |
Cambridge University Press |
publishDate |
2015 |
url |
https://hdl.handle.net/10568/68102 http://journals.cambridge.org/article_S1479262115000374 https://doi.org/10.1017/S1479262115000374 |
long_lat |
ENVELOPE(-52.150,-52.150,68.717,68.717) |
geographic |
Nuuk |
geographic_facet |
Nuuk |
genre |
Nuuk |
genre_facet |
Nuuk |
op_source |
Plant Genetic Resources: Characterization and Utilization |
op_relation |
Fenzi, M.; Jarvis, D.I.; Reyes, L.M.A.; Moreno, L.L.; Tuxill, J. (2015) Longitudinal analysis of maize diversity in Yucatan, Mexico: influence of agro-ecological factors on landraces conservation and modern variety introduction. Plant Genetic Resources: Characterization and Utilization. Online first paper. ISSN: 1479-263X 1479-263X https://hdl.handle.net/10568/68102 http://journals.cambridge.org/article_S1479262115000374 https://doi.org/10.1017/S1479262115000374 |
op_rights |
CC-BY-4.0 Open Access |
op_doi |
https://doi.org/10.1017/S1479262115000374 |
container_title |
Plant Genetic Resources |
container_volume |
15 |
container_issue |
1 |
container_start_page |
51 |
op_container_end_page |
63 |
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1787427171783933952 |