Genetic diversity of the rain tree (Albizia saman) in Colombian seasonally dry tropical forest for informing conservation and restoration interventions
Albizia saman is a multipurpose tree species of seasonally dry tropical forests (SDTFs) of Mesoamerica and northern South America typically cultivated in silvopastoral and other agroforestry systems around the world, a trend that is bound to increase in light of multimillion hectare commitments for...
| Main Authors: | , , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Wiley
2020
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/106960 |
| _version_ | 1855518939848638464 |
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| author | Aguirre‐Morales, Carolina Adriana Thomas, Evert Cardozo, Carlos Ivan Gutiérrez Artunduaga, Janneth Patricia Alcázar Caicedo, Carolina Moscoso Higuita, Luis Gonzalo Becerra López Lavelle, Luis Augusto González, Maylin Adriana |
| author_browse | Aguirre‐Morales, Carolina Adriana Alcázar Caicedo, Carolina Becerra López Lavelle, Luis Augusto Cardozo, Carlos Ivan González, Maylin Adriana Gutiérrez Artunduaga, Janneth Patricia Moscoso Higuita, Luis Gonzalo Thomas, Evert |
| author_facet | Aguirre‐Morales, Carolina Adriana Thomas, Evert Cardozo, Carlos Ivan Gutiérrez Artunduaga, Janneth Patricia Alcázar Caicedo, Carolina Moscoso Higuita, Luis Gonzalo Becerra López Lavelle, Luis Augusto González, Maylin Adriana |
| author_sort | Aguirre‐Morales, Carolina Adriana |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Albizia saman is a multipurpose tree species of seasonally dry tropical forests (SDTFs) of Mesoamerica and northern South America typically cultivated in silvopastoral and other agroforestry systems around the world, a trend that is bound to increase in light of multimillion hectare commitments for forest and landscape restoration. The effective conservation and sustainable use of A. saman requires detailed knowledge of its genetic diversity across its native distribution range of which surprisingly little is known to date. We assessed the genetic diversity and structure of A.saman across twelve representative locations of SDTF in Colombia, and how they may have been shaped by past climatic changes and human influence. We found four different genetic groups which may be the result of differentiation due to isolation of populations in preglacial times. The current distribution and mixture of genetic groups across STDF fragments we observed might be the result of range expansion of SDTFs during the last glacial period followed by range contraction during the Holocene and human‐influenced movement of germplasm associated with cattle ranching. Despite the fragmented state of the presumed natural A. saman stands we sampled, we did not find any signs of inbreeding, suggesting that gene flow is not jeopardized in humanized landscapes. However, further research is needed to assess potential deleterious effects of fragmentation on progeny. Climate change is not expected to seriously threaten the in situ persistence of A. saman populations and might present opportunities for future range expansion. However, the sourcing of germplasm for tree planting activities needs to be aligned with the genetic affinity of reference populations across the distribution of Colombian SDTFs. We identify priority source populations for in situ conservation based on their high genetic diversity, lack or limited signs of admixture, and/or genetic uniqueness. |
| format | Journal Article |
| id | CGSpace106960 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace1069602025-11-12T05:54:02Z Genetic diversity of the rain tree (Albizia saman) in Colombian seasonally dry tropical forest for informing conservation and restoration interventions Aguirre‐Morales, Carolina Adriana Thomas, Evert Cardozo, Carlos Ivan Gutiérrez Artunduaga, Janneth Patricia Alcázar Caicedo, Carolina Moscoso Higuita, Luis Gonzalo Becerra López Lavelle, Luis Augusto González, Maylin Adriana albizia saman agroforestry climate change microsatellites paleobotany seeds agroforesteria cambio climatico ecology Albizia saman is a multipurpose tree species of seasonally dry tropical forests (SDTFs) of Mesoamerica and northern South America typically cultivated in silvopastoral and other agroforestry systems around the world, a trend that is bound to increase in light of multimillion hectare commitments for forest and landscape restoration. The effective conservation and sustainable use of A. saman requires detailed knowledge of its genetic diversity across its native distribution range of which surprisingly little is known to date. We assessed the genetic diversity and structure of A.saman across twelve representative locations of SDTF in Colombia, and how they may have been shaped by past climatic changes and human influence. We found four different genetic groups which may be the result of differentiation due to isolation of populations in preglacial times. The current distribution and mixture of genetic groups across STDF fragments we observed might be the result of range expansion of SDTFs during the last glacial period followed by range contraction during the Holocene and human‐influenced movement of germplasm associated with cattle ranching. Despite the fragmented state of the presumed natural A. saman stands we sampled, we did not find any signs of inbreeding, suggesting that gene flow is not jeopardized in humanized landscapes. However, further research is needed to assess potential deleterious effects of fragmentation on progeny. Climate change is not expected to seriously threaten the in situ persistence of A. saman populations and might present opportunities for future range expansion. However, the sourcing of germplasm for tree planting activities needs to be aligned with the genetic affinity of reference populations across the distribution of Colombian SDTFs. We identify priority source populations for in situ conservation based on their high genetic diversity, lack or limited signs of admixture, and/or genetic uniqueness. 2020-02 2020-02-06T08:51:17Z 2020-02-06T08:51:17Z Journal Article https://hdl.handle.net/10568/106960 en Open Access application/pdf Wiley Aguirre‐Morales, C.A.; Thomas, E.; Cardozo, C.I.; Gutiérrez, J.; Alcázar Caicedo, C.; Moscoso Higuita, L.G.; Becerra López‐Lavalle, L.A.; González, M.A. (2020) Genetic diversity of the rain tree (Albizia saman) in Colombian seasonally dry tropical forest for informing conservation and restoration interventions. Ecology and Evolution 10 p.1905–1916 ISSN: 2045-7758 |
| spellingShingle | albizia saman agroforestry climate change microsatellites paleobotany seeds agroforesteria cambio climatico ecology Aguirre‐Morales, Carolina Adriana Thomas, Evert Cardozo, Carlos Ivan Gutiérrez Artunduaga, Janneth Patricia Alcázar Caicedo, Carolina Moscoso Higuita, Luis Gonzalo Becerra López Lavelle, Luis Augusto González, Maylin Adriana Genetic diversity of the rain tree (Albizia saman) in Colombian seasonally dry tropical forest for informing conservation and restoration interventions |
| title | Genetic diversity of the rain tree (Albizia saman) in Colombian seasonally dry tropical forest for informing conservation and restoration interventions |
| title_full | Genetic diversity of the rain tree (Albizia saman) in Colombian seasonally dry tropical forest for informing conservation and restoration interventions |
| title_fullStr | Genetic diversity of the rain tree (Albizia saman) in Colombian seasonally dry tropical forest for informing conservation and restoration interventions |
| title_full_unstemmed | Genetic diversity of the rain tree (Albizia saman) in Colombian seasonally dry tropical forest for informing conservation and restoration interventions |
| title_short | Genetic diversity of the rain tree (Albizia saman) in Colombian seasonally dry tropical forest for informing conservation and restoration interventions |
| title_sort | genetic diversity of the rain tree albizia saman in colombian seasonally dry tropical forest for informing conservation and restoration interventions |
| topic | albizia saman agroforestry climate change microsatellites paleobotany seeds agroforesteria cambio climatico ecology |
| url | https://hdl.handle.net/10568/106960 |
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