Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2017.01.018 |
Gene flow interruption in a recently human-modified landscape: The value of isolated trees for the maintenance of genetic diversity in a Mexican endemic red oak | |
Oyama, Ken1; Luisa Herrera-Arroyo, Maria1; Rocha-Ramirez, Victor2; Benitez-Malvido, Julieta2; Ruiz-Sanchez, Eduardo1; Gonzalez-Rodriguez, Antonio2 | |
2017-04-15 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT
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ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2017 |
卷号 | 390 |
文章类型 | Article |
语种 | 英语 |
国家 | Mexico |
英文摘要 | Gene flow within and among populations is an important factor to maintain genetic cohesiveness and diversity across landscapes. Nowadays, human land use has led to a large forest conversion, creating many fragmented areas where remnant trees play an important role in conserving biodiversity. In this study, we analyzed the effects of a recent anthropogenic forest fragmentation on the genetic diversity and genetic heterogeneity of pollen pools accepted by individuals of the red oak Quercus castanea growing in forest patches and as isolated trees in central Mexico. Pollen movement was also evaluated by the analysis of outcrossing rates using seven nuclear microsatellites. We assumed that adult trees are remnants of the populations that existed previous to the forest fragmentation, while progenies of these trees are the result of recent reproductive events occurring after the fragmentation. We found high genetic diversity in both adult trees and progenies, even though progenies of isolated trees showed a significant reduction in heterozygosity as compared to their mother trees. However, the results of TWOGENER and mating system analyses indicated similar numbers of pollen donors in the progenies of mother trees from fragments and in isolated trees. Overall, our results suggest that gene flow is still extensive among forest fragments and isolated trees, conferring them a great value for the conservation of genetic diversity and connectivity. (C) 2017 Elsevier B.V. All rights reserved. |
英文关键词 | Gene flow Genetic diversity Forest fragmentation Isolated trees Outcrossing rates Quercus castanea |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000398873700004 |
WOS关键词 | QUERCUS-CASTANEA FAGACEAE ; TROPICAL DRY FOREST ; GIS-BASED APPROACH ; POLLEN FLOW ; SCATTERED TREES ; HABITAT FRAGMENTATION ; 2-GENERATION ANALYSIS ; REPRODUCTIVE SUCCESS ; COMPUTER-PROGRAM ; MATING PATTERNS |
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/22646 |
专题 | 气候变化 |
作者单位 | 1.UNAM, Escuela Nacl Estudios Super Unidad Morelia, Antigua Carretera Patzcuaro 8701, Morelia 58190, Michoacan, Mexico; 2.UNAM, Inst Invest Ecosistemas & Sustentabilidad, Antigua Carretera Patzcuaro 8701, Morelia 58190, Michoacan, Mexico |
推荐引用方式 GB/T 7714 | Oyama, Ken,Luisa Herrera-Arroyo, Maria,Rocha-Ramirez, Victor,et al. Gene flow interruption in a recently human-modified landscape: The value of isolated trees for the maintenance of genetic diversity in a Mexican endemic red oak[J]. FOREST ECOLOGY AND MANAGEMENT,2017,390. |
APA | Oyama, Ken,Luisa Herrera-Arroyo, Maria,Rocha-Ramirez, Victor,Benitez-Malvido, Julieta,Ruiz-Sanchez, Eduardo,&Gonzalez-Rodriguez, Antonio.(2017).Gene flow interruption in a recently human-modified landscape: The value of isolated trees for the maintenance of genetic diversity in a Mexican endemic red oak.FOREST ECOLOGY AND MANAGEMENT,390. |
MLA | Oyama, Ken,et al."Gene flow interruption in a recently human-modified landscape: The value of isolated trees for the maintenance of genetic diversity in a Mexican endemic red oak".FOREST ECOLOGY AND MANAGEMENT 390(2017). |
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