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Premise Of The Study: Protorhus deflexa is an endemic large-seeded tree in Madagascar that depends heavily on insects for cross-pollination and on large-bodied frugivores for seed dispersal. Because such mutualistic relationships are vulnerable to human disturbance, the development of microsatellite markers will enhance analyses of gene flow in this tree species in degraded forests. •
Methods And Results: Nineteen microsatellite markers were developed for P. deflexa using 454 pyrosequencing. The number of alleles ranged from two to nine, and the ranges of observed and expected heterozygosities were 0.200-0.800 and 0.303-0.821, respectively. The parentage exclusion probability by the 19 loci reached 0.98583 for the first parent and 0.99971 for the second parent. •
Conclusions: These markers will be useful for studying gene flow via pollination and seed dispersal by animals and the genetic structure of P. deflexa in protected and degraded forests in Madagascar.
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http://dx.doi.org/10.3732/apps.1300046 | DOI Listing |
J Plant Res
July 2025
Institute of Evolution and Ecology, School of Life Sciences, Central China Normal University, NO.152 Luoyu Road, Wuhan, 430079, Hubei, China.
Forest fragmentation induced by urbanization usually has a negative effect on gene flow by limiting animal-mediated seed dispersal. Since the effect of forest fragmentation on animal-induced seed dispersal is related to seed size, it is likely that the impact of such fragmentation on genetic structure varies among the species with different seed sizes. To test this prediction, we investigated the genetic diversity, structure and kinship structure of seedlings and adult trees in two different seed-sized oaks, Quercus variabilis and Quercus chenii, which are undergoing seed dispersal limitation in urban areas, e.
View Article and Find Full Text PDFEcol Evol
June 2025
The Wildlife Observatory of Australia (WildObs) QCIF Brisbane Queensland Australia.
The Australian Wet Tropics rainforests are a biodiversity hotspot covering just 0.2% of the continent's land area. However, historic forest loss, modern fragmentation, and climate change continue to threaten these ecosystems.
View Article and Find Full Text PDFVet Sci
March 2025
Animal Science Department, Biomedical Primate Research Centre, 2288 GJ Rijswijk, The Netherlands.
Elephants exhibit remarkable cognitive and social abilities, which are integral to their navigation, resource acquisition, and responses to environmental challenges such as climate change and human-wildlife conflict. Their capacity to acquire, recall, and utilise spatial information enables them to traverse large, fragmented landscapes, locate essential resources, and mitigate risks. While older elephants, particularly matriarchs, are often regarded as repositories of ecological knowledge, the mechanisms by which younger individuals acquire this information remain uncertain.
View Article and Find Full Text PDFSci Total Environ
February 2025
Plant and Animal Ecology Lab (PAELLA). Centro para la Conservación de la Biodiversidad y el Desarrollo Sostenible (CBDS). Universidad Politécnica de Madrid, Madrid, Spain.
Ecological restoration can mitigate the negative effects of loss and degradation of natural ecosystems. However, the efficacy of restoration strategies (active vs. passive) in recovering crucial ecological interactions such as animal seed dispersal remains largely unknown.
View Article and Find Full Text PDFEcol Appl
January 2025
Environmental Studies Department, University of California, Santa Cruz, California, USA.
Tropical forest restoration presents a potential lifeline to mitigate climate change and biodiversity crises in the Anthropocene. Yet, the extent to which human interventions, such as tree planting, accelerate the recovery of mature functioning ecosystems or redirect successional trajectories toward novel states remains uncertain due to a lack of long-term experiments. In 2004-2006, we established three 0.
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