Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2018.12.058 |
Temporal changes in population genetics of six threatened Brazilian plant species in a fragmented landscape | |
Lauterjung, Miguel Busarello1; Montagna, Tiago1; Bernardi, Alison Paulo1; da Silva, Juliano Zago1; Freitas da Costa, Newton Clovis1; Steiner, Felipe1; Mantovani, Adelar2; dos Reis, Mauricio Sedrez1 | |
2019-03-01 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT
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ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2019 |
卷号 | 435页码:144-150 |
文章类型 | Article |
语种 | 英语 |
国家 | Brazil |
英文摘要 | Anthropic pressure has caused several changes in the environment, such as habitat loss and fragmentation. One effective way to evaluate its effects on population genetics is to monitor populations through time. We aimed to characterize the population genetics of six plant species at two different times (cohorts). We asked (1) if populations show genetic divergence between cohorts, (2) if any significant changes are present between the genetic index of cohorts and, if so, (3) whether such changes are related to the adult cohort fixation index. To address these questions, we studied 61 populations of 50 adult and 50 seedling individuals genotyped with allozyme markers. We calculated allelic richness (Ar), observed (Ho) and expected heterozygosity (He), and fixation index (f) for each population cohort; and pairwise F-ST between cohorts. Seedlings were genetically similar to the adults (mean pairwise F-ST = 0.014). No difference was found in the proportion of populations that showed increases and decreases of the genetic indexes over cohorts, except f, for which more populations showed a decrease. Adult fixation index had a correlation with Ho (r = 0.507, p = 3.10(-5)) and He (r = - 0.247, p = 0.055). A mean test between cohorts revealed the maintenance of high f values in Araucaria angustifolia and Ocotea catharinensis, as well as a significant decrease in He of Euterpe edulis, species widely explored in the past. Although we only studied two cohorts, general trends and significant changes were detected, which could be important in the conservation of those six species. |
英文关键词 | Atlantic Rainforest Natural regeneration Population monitoring Apuleia leiocarpa Dicksonia sellowiana Podocarpus lambertii |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000457950000017 |
WOS关键词 | LATE QUATERNARY VEGETATION ; ARAUCARIA FOREST ; DIVERSITY ; HISTORY ; MICROSATELLITE ; CONSEQUENCES ; CONSERVATION ; MANAGEMENT ; DYNAMICS ; CLIMATE |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/24098 |
专题 | 气候变化 |
作者单位 | 1.Univ Fed Santa Catarina, Nucleo Pesquisas Florestas Trop, Fitotecnia, BR-55483721 Florianopolis, SC, Brazil; 2.Univ Estado Santa Catarina, Engn Forestal, Campus 3 Planalto Serrano, Lages, SC, Brazil |
推荐引用方式 GB/T 7714 | Lauterjung, Miguel Busarello,Montagna, Tiago,Bernardi, Alison Paulo,et al. Temporal changes in population genetics of six threatened Brazilian plant species in a fragmented landscape[J]. FOREST ECOLOGY AND MANAGEMENT,2019,435:144-150. |
APA | Lauterjung, Miguel Busarello.,Montagna, Tiago.,Bernardi, Alison Paulo.,da Silva, Juliano Zago.,Freitas da Costa, Newton Clovis.,...&dos Reis, Mauricio Sedrez.(2019).Temporal changes in population genetics of six threatened Brazilian plant species in a fragmented landscape.FOREST ECOLOGY AND MANAGEMENT,435,144-150. |
MLA | Lauterjung, Miguel Busarello,et al."Temporal changes in population genetics of six threatened Brazilian plant species in a fragmented landscape".FOREST ECOLOGY AND MANAGEMENT 435(2019):144-150. |
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