Academic Journal
Genetic structure of two Prosopisspecies in Chaco areas: A lack of allelic diversity diagnosis and insights into the allelic conservation of the affected species
| العنوان: | Genetic structure of two Prosopisspecies in Chaco areas: A lack of allelic diversity diagnosis and insights into the allelic conservation of the affected species |
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| المؤلفون: | Alves, Fábio M., Sartori, Ângela L. B., Zucchi, Maria I., Azevedo‐Tozzi, Ana M. G., Tambarussi, Evandro V., Alves‐Pereira, Alessandro, de Souza, Anete P. |
| المساهمون: | Conselho Nacional de Desenvolvimento Científico e Tecnológico, Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Fundação de Amparo à Pesquisa do Estado de São Paulo |
| المصدر: | Ecology and Evolution ; volume 8, issue 13, page 6558-6574 ; ISSN 2045-7758 2045-7758 |
| بيانات النشر: | Wiley |
| سنة النشر: | 2018 |
| المجموعة: | Wiley Online Library (Open Access Articles via Crossref) |
| الوصف: | The Gran Chaco is the largest continuous region of the South American dry forest, spanning Argentina, Paraguay, Bolivia, and Brazil. Prosopis rubriflora and Prosopis ruscifolia are typical tree species of chaquenian area forests, which have been subjected to continuous fragmentation caused by cattle raising. This study evaluated P. rubriflora and P. ruscifolia in areas with varying levels of disturbance. We investigated the contemporary genetic diversities of both species in areas with distinct anthropogenic disturbances. Even with a lower heterozygote frequency, disturbed areas can provide important storage for alleles, allowing the maintenance of diversity. The genetic diversity of P. rubriflora was surprisingly similar to that of P. ruscifolia ( H e = 0.59 and H e = 0.60, respectively) even with very different distribution ranges of both species. However, P. ruscifolia exhibited a higher intrapopulation fixation index than P. rubriflora . P. rubriflora showed evidence of bottlenecking in 64% of the sampled areas, while P. ruscifolia showed such evidence in 36% of the sampled areas. Additionally, P. rubriflora had two distinct populations due to its disjunctive geographic distribution, whereas P. ruscifolia had a single population that exhibited few signs of population structure in some areas, possibly due to the main pollinators presenting a short range of dispersion. Our results suggest that 42 Chaco areas should be conserved to retain the minimum of 500 individuals necessary to maintain genetic diversity for 100–1,000 generations. This study improves our understanding of these two Prosopis species and provides information for the conservation of their genetic diversities. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1002/ece3.4137 |
| الاتاحة: | http://dx.doi.org/10.1002/ece3.4137 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fece3.4137 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.4137 |
| Rights: | http://creativecommons.org/licenses/by/4.0/ |
| رقم الانضمام: | edsbas.1870697C |
| قاعدة البيانات: | BASE |
| DOI: | 10.1002/ece3.4137 |
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