Effects of selective logging on the mating system and pollen dispersal of Hymenaea courbaril L. (Leguminosae) in the Eastern Brazilian Amazon as revealed by microsatellite analysis
Using nine microsatellite loci, we studied the effects of selective logging on genetic diversity, mating system and pollen dispersal in a population of the tree species Hymenaea courbaril, located in a 546ha plot in the Tapajós National Forest, Pará State, Brazil. We analyzed 250 offspring (nursery...
| Autor principal: | Carneiro, Francimary da Silva |
|---|---|
| Outros Autores: | Lacerda, André Eduardo Biscaia de, Lemes, Maristerra R., Gribel, Rogério, Kanashiro, Milton, Wadt, Lúcia Helena de Oliveira, Magno Sebbenn, Alexandre |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Forest Ecology and Management
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/18128 |
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oai:repositorio:1-18128 |
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oai:repositorio:1-18128 Effects of selective logging on the mating system and pollen dispersal of Hymenaea courbaril L. (Leguminosae) in the Eastern Brazilian Amazon as revealed by microsatellite analysis Carneiro, Francimary da Silva Lacerda, André Eduardo Biscaia de Lemes, Maristerra R. Gribel, Rogério Kanashiro, Milton Wadt, Lúcia Helena de Oliveira Magno Sebbenn, Alexandre Gene Flows Pollen Dispersal Reduced-impact Logging Ssr Loci Tropical Tree Biodiversity Dna Sequences Forestry Genes Plant Extracts Seed Population Statistics Autogamy Dispersal Effective Population Size Episodic Event Gene Flow Genetic Marker Legume Selective Logging Tropical Forest Biodiversity Biological Populations Brasil Extractives Forestry Genes Logging Nucleic Acids Plants Pollen Rivers Seeds Statistics Tropical Atmospheres Amazonas Brasil Fabaceae Hymenaea Hymenaea Courbaril Using nine microsatellite loci, we studied the effects of selective logging on genetic diversity, mating system and pollen dispersal in a population of the tree species Hymenaea courbaril, located in a 546ha plot in the Tapajós National Forest, Pará State, Brazil. We analyzed 250 offspring (nursery reared seedlings) collected after a logging episode from 14 open-pollinated seed trees. These were compared to 367 seedlings from 20 open-pollinated seed trees previously collected from the pre-logging primary forest. The genetic diversity was significantly lower in the post-logging seed cohort. In contrast to the pre-logging population, significant levels of selfing were detected in the post-logging population (tm=0.962, P<0.05). However, correlated matings were reduced and the effective number of pollen donors almost doubled after harvesting (3.8 against 7.2). Logging also reduced pollen immigration into the plot (from 55% to 38%) and we found no significant correlation between the size of the pollen donors and the number of seeds fathered. Inside the plot, pollen dispersal distance was shorter before logging than after (827 and 952m, respectively) and the reproductive pollination neighbor area (Aep) was larger (average of 178ha). The individual and average variance effective population size within families (ranged from 1.80 to 3.21, average of 2.47) was lower than expected in panmictic populations (Ne=4). The results indicate that while logging greatly reduced the levels of genetic diversity after logging, it also increased genetic recombination within the population and constrained crossing among related individuals. The results show that low-density tropical tree species such as H. courbaril, when harvested in moderate levels may be resilient to a reduction in the reproductive population and may maintain similar levels of outcrossing and pollen dispersal after logging. © 2011 Elsevier B.V. 2020-06-15T21:51:53Z 2020-06-15T21:51:53Z 2011 Artigo https://repositorio.inpa.gov.br/handle/1/18128 10.1016/j.foreco.2011.07.023 en Volume 262, Número 9, Pags. 1758-1765 Restrito Forest Ecology and Management |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Gene Flows Pollen Dispersal Reduced-impact Logging Ssr Loci Tropical Tree Biodiversity Dna Sequences Forestry Genes Plant Extracts Seed Population Statistics Autogamy Dispersal Effective Population Size Episodic Event Gene Flow Genetic Marker Legume Selective Logging Tropical Forest Biodiversity Biological Populations Brasil Extractives Forestry Genes Logging Nucleic Acids Plants Pollen Rivers Seeds Statistics Tropical Atmospheres Amazonas Brasil Fabaceae Hymenaea Hymenaea Courbaril |
| spellingShingle |
Gene Flows Pollen Dispersal Reduced-impact Logging Ssr Loci Tropical Tree Biodiversity Dna Sequences Forestry Genes Plant Extracts Seed Population Statistics Autogamy Dispersal Effective Population Size Episodic Event Gene Flow Genetic Marker Legume Selective Logging Tropical Forest Biodiversity Biological Populations Brasil Extractives Forestry Genes Logging Nucleic Acids Plants Pollen Rivers Seeds Statistics Tropical Atmospheres Amazonas Brasil Fabaceae Hymenaea Hymenaea Courbaril Carneiro, Francimary da Silva Effects of selective logging on the mating system and pollen dispersal of Hymenaea courbaril L. (Leguminosae) in the Eastern Brazilian Amazon as revealed by microsatellite analysis |
| topic_facet |
Gene Flows Pollen Dispersal Reduced-impact Logging Ssr Loci Tropical Tree Biodiversity Dna Sequences Forestry Genes Plant Extracts Seed Population Statistics Autogamy Dispersal Effective Population Size Episodic Event Gene Flow Genetic Marker Legume Selective Logging Tropical Forest Biodiversity Biological Populations Brasil Extractives Forestry Genes Logging Nucleic Acids Plants Pollen Rivers Seeds Statistics Tropical Atmospheres Amazonas Brasil Fabaceae Hymenaea Hymenaea Courbaril |
| description |
Using nine microsatellite loci, we studied the effects of selective logging on genetic diversity, mating system and pollen dispersal in a population of the tree species Hymenaea courbaril, located in a 546ha plot in the Tapajós National Forest, Pará State, Brazil. We analyzed 250 offspring (nursery reared seedlings) collected after a logging episode from 14 open-pollinated seed trees. These were compared to 367 seedlings from 20 open-pollinated seed trees previously collected from the pre-logging primary forest. The genetic diversity was significantly lower in the post-logging seed cohort. In contrast to the pre-logging population, significant levels of selfing were detected in the post-logging population (tm=0.962, P<0.05). However, correlated matings were reduced and the effective number of pollen donors almost doubled after harvesting (3.8 against 7.2). Logging also reduced pollen immigration into the plot (from 55% to 38%) and we found no significant correlation between the size of the pollen donors and the number of seeds fathered. Inside the plot, pollen dispersal distance was shorter before logging than after (827 and 952m, respectively) and the reproductive pollination neighbor area (Aep) was larger (average of 178ha). The individual and average variance effective population size within families (ranged from 1.80 to 3.21, average of 2.47) was lower than expected in panmictic populations (Ne=4). The results indicate that while logging greatly reduced the levels of genetic diversity after logging, it also increased genetic recombination within the population and constrained crossing among related individuals. The results show that low-density tropical tree species such as H. courbaril, when harvested in moderate levels may be resilient to a reduction in the reproductive population and may maintain similar levels of outcrossing and pollen dispersal after logging. © 2011 Elsevier B.V. |
| format |
Artigo |
| author |
Carneiro, Francimary da Silva |
| author2 |
Lacerda, André Eduardo Biscaia de Lemes, Maristerra R. Gribel, Rogério Kanashiro, Milton Wadt, Lúcia Helena de Oliveira Magno Sebbenn, Alexandre |
| author2Str |
Lacerda, André Eduardo Biscaia de Lemes, Maristerra R. Gribel, Rogério Kanashiro, Milton Wadt, Lúcia Helena de Oliveira Magno Sebbenn, Alexandre |
| title |
Effects of selective logging on the mating system and pollen dispersal of Hymenaea courbaril L. (Leguminosae) in the Eastern Brazilian Amazon as revealed by microsatellite analysis |
| title_short |
Effects of selective logging on the mating system and pollen dispersal of Hymenaea courbaril L. (Leguminosae) in the Eastern Brazilian Amazon as revealed by microsatellite analysis |
| title_full |
Effects of selective logging on the mating system and pollen dispersal of Hymenaea courbaril L. (Leguminosae) in the Eastern Brazilian Amazon as revealed by microsatellite analysis |
| title_fullStr |
Effects of selective logging on the mating system and pollen dispersal of Hymenaea courbaril L. (Leguminosae) in the Eastern Brazilian Amazon as revealed by microsatellite analysis |
| title_full_unstemmed |
Effects of selective logging on the mating system and pollen dispersal of Hymenaea courbaril L. (Leguminosae) in the Eastern Brazilian Amazon as revealed by microsatellite analysis |
| title_sort |
effects of selective logging on the mating system and pollen dispersal of hymenaea courbaril l. (leguminosae) in the eastern brazilian amazon as revealed by microsatellite analysis |
| publisher |
Forest Ecology and Management |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/18128 |
| _version_ |
1787144904430845952 |
| score |
11.755432 |