Genetic diversity of two tropical tree species of the Dipterocarpaceae following logging and restoration in Borneo: high genetic diversity in plots with high species diversity
<h4>Background</h4> <p>The impact of logging and restoration on species diversity has been well studied in tropical forests. However, little is known about their effects on genetic diversity within species.</p> <h4>Aims</h4> <p>We assess the degree of genet...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Journal article |
| Published: |
Taylor and Francis
2017
|
| _version_ | 1797057943609278464 |
|---|---|
| author | Cheng Choon, A O'Brien, M Ng, K Lee, P Hector, A Schmid, B Shimizu, K |
| author_facet | Cheng Choon, A O'Brien, M Ng, K Lee, P Hector, A Schmid, B Shimizu, K |
| author_sort | Cheng Choon, A |
| collection | OXFORD |
| description | <h4>Background</h4> <p>The impact of logging and restoration on species diversity has been well studied in tropical forests. However, little is known about their effects on genetic diversity within species.</p> <h4>Aims</h4> <p>We assess the degree of genetic diversity among dipterocarp seedlings used for enrichment planting of selectively logged forests in Sabah, Malaysia, and compare it with diversity in naturally regenerating seedlings.</p> <h4>Methods</h4> <p>We sampled young leaf tissues from seedlings of Shorea leprosula and Parashorea malaanonan for DNA genotyping, using microsatellite markers.</p> <h4>Results</h4> <p>The levels of genetic diversity (expected heterozygosity and rarefied allelic richness) of naturally regenerating seedlings were statistically indistinguishable among unlogged, once logged and repeatedly logged forest areas. Enrichment planted seedlings of P. malaanonan exhibited similar levels of genetic diversity to naturally regenerating seedlings whereas those of S. leprosul ahad significantly lower genetic diversity than natural seedlings. Interestingly, reduction of genetic variation was consistently observed in single-species plots relative to mixed-species plots among enrichment-planted seedlings.</p> <h4>Conclusions</h4> <p>There was no reduction of genetic variation in naturally regenerating dipterocarp seedlings in areas of selective logging. However, genetic variation of enrichment-planted seedlings was lower in single-species plots relative to mixed-species plots. This suggests that enrichment-planting strategies should adopt diverse mixtures that should promote levels of both species richness and genetic diversity within species</p> |
| first_indexed | 2024-03-06T19:43:32Z |
| format | Journal article |
| id | oxford-uuid:217abdca-6534-4059-ac12-57ffb4d7f502 |
| institution | University of Oxford |
| last_indexed | 2024-03-06T19:43:32Z |
| publishDate | 2017 |
| publisher | Taylor and Francis |
| record_format | dspace |
| spelling | oxford-uuid:217abdca-6534-4059-ac12-57ffb4d7f5022022-03-26T11:33:40ZGenetic diversity of two tropical tree species of the Dipterocarpaceae following logging and restoration in Borneo: high genetic diversity in plots with high species diversityJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:217abdca-6534-4059-ac12-57ffb4d7f502Symplectic Elements at OxfordTaylor and Francis2017Cheng Choon, AO'Brien, MNg, KLee, PHector, ASchmid, BShimizu, K <h4>Background</h4> <p>The impact of logging and restoration on species diversity has been well studied in tropical forests. However, little is known about their effects on genetic diversity within species.</p> <h4>Aims</h4> <p>We assess the degree of genetic diversity among dipterocarp seedlings used for enrichment planting of selectively logged forests in Sabah, Malaysia, and compare it with diversity in naturally regenerating seedlings.</p> <h4>Methods</h4> <p>We sampled young leaf tissues from seedlings of Shorea leprosula and Parashorea malaanonan for DNA genotyping, using microsatellite markers.</p> <h4>Results</h4> <p>The levels of genetic diversity (expected heterozygosity and rarefied allelic richness) of naturally regenerating seedlings were statistically indistinguishable among unlogged, once logged and repeatedly logged forest areas. Enrichment planted seedlings of P. malaanonan exhibited similar levels of genetic diversity to naturally regenerating seedlings whereas those of S. leprosul ahad significantly lower genetic diversity than natural seedlings. Interestingly, reduction of genetic variation was consistently observed in single-species plots relative to mixed-species plots among enrichment-planted seedlings.</p> <h4>Conclusions</h4> <p>There was no reduction of genetic variation in naturally regenerating dipterocarp seedlings in areas of selective logging. However, genetic variation of enrichment-planted seedlings was lower in single-species plots relative to mixed-species plots. This suggests that enrichment-planting strategies should adopt diverse mixtures that should promote levels of both species richness and genetic diversity within species</p> |
| spellingShingle | Cheng Choon, A O'Brien, M Ng, K Lee, P Hector, A Schmid, B Shimizu, K Genetic diversity of two tropical tree species of the Dipterocarpaceae following logging and restoration in Borneo: high genetic diversity in plots with high species diversity |
| title | Genetic diversity of two tropical tree species of the Dipterocarpaceae following logging and restoration in Borneo: high genetic diversity in plots with high species diversity |
| title_full | Genetic diversity of two tropical tree species of the Dipterocarpaceae following logging and restoration in Borneo: high genetic diversity in plots with high species diversity |
| title_fullStr | Genetic diversity of two tropical tree species of the Dipterocarpaceae following logging and restoration in Borneo: high genetic diversity in plots with high species diversity |
| title_full_unstemmed | Genetic diversity of two tropical tree species of the Dipterocarpaceae following logging and restoration in Borneo: high genetic diversity in plots with high species diversity |
| title_short | Genetic diversity of two tropical tree species of the Dipterocarpaceae following logging and restoration in Borneo: high genetic diversity in plots with high species diversity |
| title_sort | genetic diversity of two tropical tree species of the dipterocarpaceae following logging and restoration in borneo high genetic diversity in plots with high species diversity |
| work_keys_str_mv | AT chengchoona geneticdiversityoftwotropicaltreespeciesofthedipterocarpaceaefollowingloggingandrestorationinborneohighgeneticdiversityinplotswithhighspeciesdiversity AT obrienm geneticdiversityoftwotropicaltreespeciesofthedipterocarpaceaefollowingloggingandrestorationinborneohighgeneticdiversityinplotswithhighspeciesdiversity AT ngk geneticdiversityoftwotropicaltreespeciesofthedipterocarpaceaefollowingloggingandrestorationinborneohighgeneticdiversityinplotswithhighspeciesdiversity AT leep geneticdiversityoftwotropicaltreespeciesofthedipterocarpaceaefollowingloggingandrestorationinborneohighgeneticdiversityinplotswithhighspeciesdiversity AT hectora geneticdiversityoftwotropicaltreespeciesofthedipterocarpaceaefollowingloggingandrestorationinborneohighgeneticdiversityinplotswithhighspeciesdiversity AT schmidb geneticdiversityoftwotropicaltreespeciesofthedipterocarpaceaefollowingloggingandrestorationinborneohighgeneticdiversityinplotswithhighspeciesdiversity AT shimizuk geneticdiversityoftwotropicaltreespeciesofthedipterocarpaceaefollowingloggingandrestorationinborneohighgeneticdiversityinplotswithhighspeciesdiversity |