Genetic structure and genetic diversity of Swietenia macrophylla (Meliaceae): implications for sustainable forest management in Mexico
The genetic structure and genetic diversity of Mexican populations of Swietenia macrophylla were evaluated. In Mexico, this neotropical tree reaches its northernmost distribution limit. The relationship between genetic diversity and geographic position (longitude, latitude) of four populations wa...
| Main Authors: | , , , |
|---|---|
| Format: | Journal Article |
| Language: | Inglés |
| Published: |
2014
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/89208 |
| _version_ | 1855524363502092288 |
|---|---|
| author | Alcala, R.E. Salazar, H. Gutiérrez Granados, G. Snook, Laura K. |
| author_browse | Alcala, R.E. Gutiérrez Granados, G. Salazar, H. Snook, Laura K. |
| author_facet | Alcala, R.E. Salazar, H. Gutiérrez Granados, G. Snook, Laura K. |
| author_sort | Alcala, R.E. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The genetic structure and genetic diversity of Mexican populations of Swietenia macrophylla were evaluated. In Mexico, this neotropical tree reaches its northernmost distribution limit. The relationship between genetic diversity and geographic position (longitude, latitude) of four populations was described. The mean genetic and pairwise genetic differentiations were estimated to study the geographic pattern in the genetic structure. The mean overall values for observed heterozygosis (Ho), expected heterozygosis (He) and fixation coefficient (Fis) were 0.41, 0.71 and 0.449 respectively. The mean values per population of Ho, He and Fis correlated with latitude only. The genetic differentiation between populations revealed by the coefficient of differentiation (Fst= 0.047) was statistically significant (p=0.0001). Unweighted pair group method analysis showed that the extent of pairwise genetic differentiation increased with latitudinal position of populations, although no isolation by distance was observed (r=0.76, p=0.15). Results were discussed in the context of the marginal distribution of Mexican populations. Implications of the results on the conservation of S. macrophylla , particularly for populations located in the Mayan zone were discussed. |
| format | Journal Article |
| id | CGSpace89208 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2014 |
| publishDateRange | 2014 |
| publishDateSort | 2014 |
| record_format | dspace |
| spelling | CGSpace892082025-11-12T05:41:48Z Genetic structure and genetic diversity of Swietenia macrophylla (Meliaceae): implications for sustainable forest management in Mexico Alcala, R.E. Salazar, H. Gutiérrez Granados, G. Snook, Laura K. swietenia macrophylla genetic structure genetic variation microsatellites sustainable forest management The genetic structure and genetic diversity of Mexican populations of Swietenia macrophylla were evaluated. In Mexico, this neotropical tree reaches its northernmost distribution limit. The relationship between genetic diversity and geographic position (longitude, latitude) of four populations was described. The mean genetic and pairwise genetic differentiations were estimated to study the geographic pattern in the genetic structure. The mean overall values for observed heterozygosis (Ho), expected heterozygosis (He) and fixation coefficient (Fis) were 0.41, 0.71 and 0.449 respectively. The mean values per population of Ho, He and Fis correlated with latitude only. The genetic differentiation between populations revealed by the coefficient of differentiation (Fst= 0.047) was statistically significant (p=0.0001). Unweighted pair group method analysis showed that the extent of pairwise genetic differentiation increased with latitudinal position of populations, although no isolation by distance was observed (r=0.76, p=0.15). Results were discussed in the context of the marginal distribution of Mexican populations. Implications of the results on the conservation of S. macrophylla , particularly for populations located in the Mayan zone were discussed. 2014 2017-11-07T13:50:06Z 2017-11-07T13:50:06Z Journal Article https://hdl.handle.net/10568/89208 en Open Access application/pdf Alcala, R.E.; Salazar, H.; Gutierrez-Granados, G.; Snook, L.K. (2014) Genetic structure and genetic diversity of Swietenia macrophylla (Meliaceae): implications for sustainable forest management in Mexico. Journal of Tropical Forest Science 26(1) p. 142–152 ISSN: 0128-1283 |
| spellingShingle | swietenia macrophylla genetic structure genetic variation microsatellites sustainable forest management Alcala, R.E. Salazar, H. Gutiérrez Granados, G. Snook, Laura K. Genetic structure and genetic diversity of Swietenia macrophylla (Meliaceae): implications for sustainable forest management in Mexico |
| title | Genetic structure and genetic diversity of Swietenia macrophylla (Meliaceae): implications for sustainable forest management in Mexico |
| title_full | Genetic structure and genetic diversity of Swietenia macrophylla (Meliaceae): implications for sustainable forest management in Mexico |
| title_fullStr | Genetic structure and genetic diversity of Swietenia macrophylla (Meliaceae): implications for sustainable forest management in Mexico |
| title_full_unstemmed | Genetic structure and genetic diversity of Swietenia macrophylla (Meliaceae): implications for sustainable forest management in Mexico |
| title_short | Genetic structure and genetic diversity of Swietenia macrophylla (Meliaceae): implications for sustainable forest management in Mexico |
| title_sort | genetic structure and genetic diversity of swietenia macrophylla meliaceae implications for sustainable forest management in mexico |
| topic | swietenia macrophylla genetic structure genetic variation microsatellites sustainable forest management |
| url | https://hdl.handle.net/10568/89208 |
| work_keys_str_mv | AT alcalare geneticstructureandgeneticdiversityofswieteniamacrophyllameliaceaeimplicationsforsustainableforestmanagementinmexico AT salazarh geneticstructureandgeneticdiversityofswieteniamacrophyllameliaceaeimplicationsforsustainableforestmanagementinmexico AT gutierrezgranadosg geneticstructureandgeneticdiversityofswieteniamacrophyllameliaceaeimplicationsforsustainableforestmanagementinmexico AT snooklaurak geneticstructureandgeneticdiversityofswieteniamacrophyllameliaceaeimplicationsforsustainableforestmanagementinmexico |