scholarly journals Fine‐scale spatial genetic structure across the species range reflects recent colonization of high elevation habitats in silver fir ( Abies alba Mill.)

2021 ◽  
Author(s):  
Enikő I. Major ◽  
Mária Höhn ◽  
Camilla Avanzi ◽  
Bruno Fady ◽  
Katrin Heer ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Spatial Genetic Structure ◽  
Abies Alba ◽  
High Elevation ◽  
Species Range ◽  
Silver Fir ◽  
Fine Scale

scholarly journals Fine-scale spatial genetic structure across the species range reflects recent colonization of high elevation habitats in silver fir (Abies alba Mill.)

2021 ◽  
Author(s):  
Enikő I. Major ◽  
Mária Höhn ◽  
Camilla Avanzi ◽  
Bruno Fady ◽  
Katrin Heer ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Genetic Structure ◽  
Spatial Genetic Structure ◽  
Abies Alba ◽  
High Elevation ◽  
Species Range ◽  
Silver Fir ◽  
Demographic Changes ◽  
Fine Scale ◽  
Colonization History

AbstractVariation in genetic diversity across species ranges has long been recognized as highly informative for assessing populations’ resilience and adaptive potential. The spatial distribution of genetic diversity, referred to as fine-scale spatial genetic structure (FSGS), also carries information about recent demographic changes, yet it has rarely been connected to range scale processes. We studied eight silver fir (Abies alba Mill.) population pairs (sites), growing at high and low elevations, representative of the main genetic lineages of the species. A total of 1368 adult trees and 540 seedlings were genotyped using 137 and 116 single nucleotide polymorphisms (SNPs), respectively. Sites revealed a clear east-west isolation-by-distance pattern consistent with the post-glacial colonization history of the species. Genetic differentiation among sites (FCT=0.148) was an order of magnitude greater than between elevations within sites (FSC=0.031), nevertheless high elevation populations consistently exhibited a stronger FSGS. Structural equation modeling revealed that elevation and, to a lesser extent, post-glacial colonization history, but not climatic and habitat variables, were the best predictors of FGSG across populations. These results may suggest that high elevation habitats have been colonized more recently across the species range. Additionally, paternity analysis revealed a high reproductive skew among adults and a stronger FSGS in seedlings than in adults, suggesting that FSGS may conserve the signature of demographic changes for several generations. Our results emphasize that spatial patterns of genetic diversity within populations provide complementary information about demographic history and could be used for defining conservation priorities.

scholarly journals Distinctions in Fine-Scale Spatial Genetic Structure Between Growth Stages of Picea jezoensis Carr.

2018 ◽  
Vol 9 ◽  
Author(s):  
Keiko Kitamura ◽  
Atsushi Nakanishi ◽  
Chunlan Lian ◽  
Susumu Goto
Keyword(s):  
Genetic Structure ◽  
Spatial Genetic Structure ◽  
Growth Stages ◽  
Fine Scale ◽  
Picea Jezoensis

scholarly journals Fine-scale spatial genetic structure of sycamore maple (Acer pseudoplatanus L.)

2011 ◽  
Vol 131 (3) ◽  
pp. 739-746 ◽  
Author(s):  
Madhav Pandey ◽  
Oliver Gailing ◽  
Hans H. Hattemer ◽  
Reiner Finkeldey
Keyword(s):  
Genetic Structure ◽  
Spatial Genetic Structure ◽  
Acer Pseudoplatanus ◽  
Fine Scale ◽  
Sycamore Maple

Fine-scale spatial genetic structure and within population male-biased gene-flow in the grasshopper Mioscirtus wagneri

2011 ◽  
Vol 25 (5) ◽  
pp. 1127-1144 ◽  
Author(s):  
Joaquín Ortego ◽  
Maria Pilar Aguirre ◽  
Pedro J. Cordero
Keyword(s):  
Gene Flow ◽  
Genetic Structure ◽  
Spatial Genetic Structure ◽  
Fine Scale

scholarly journals Are patterns of fine-scale spatial genetic structure consistent between sites within tropical tree species?

PLoS ONE ◽  
2018 ◽  
Vol 13 (3) ◽  
pp. e0193501
Author(s):  
James R. Smith ◽  
Jaboury Ghazoul ◽  
David F. R. P. Burslem ◽  
Akira Itoh ◽  
Eyen Khoo ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Tree Species ◽  
Spatial Genetic Structure ◽  
Tropical Tree ◽  
Fine Scale ◽  
Tropical Tree Species

Genetic rescue by distant trees mitigates qualitative pollen limitation imposed by fine‐scale spatial genetic structure

2019 ◽  
Vol 28 (19) ◽  
pp. 4363-4374 ◽  
Author(s):  
Antonio R. Castilla ◽  
Pedro J. Garrote ◽  
Magdalena Żywiec ◽  
Gemma Calvo ◽  
Alberto Suárez‐Esteban ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Pollen Limitation ◽  
Spatial Genetic Structure ◽  
Fine Scale ◽  
Genetic Rescue

Staying close: short local dispersal distances on a managed forest of two Patagonian Nothofagus species

2020 ◽  
Vol 93 (5) ◽  
pp. 652-661 ◽  
Author(s):  
Georgina Sola ◽  
Verónica El Mujtar ◽  
Leonardo Gallo ◽  
Giovanni G Vendramin ◽  
Paula Marchelli
Keyword(s):  
Gene Flow ◽  
Genetic Structure ◽  
Spatial Genetic Structure ◽  
Pollen Dispersal ◽  
Dispersal Distance ◽  
Restricted Gene Flow ◽  
Fine Scale ◽  
Gene Dispersal ◽  
Mature Trees ◽  
The Impact

Abstract Understanding the impact of management on the dispersal potential of forest tree species is pivotal in the context of global change, given the implications of gene flow on species evolution. We aimed to determine the effect of logging on gene flow distances in two Nothofagus species from temperate Patagonian forests having high ecological relevance and wood quality. Therefore, a total of 778 individuals (mature trees and saplings) of Nothofagus alpina and N. obliqua, from a single plot managed 20 years ago (2.85 hectares), were mapped and genotyped at polymorphic nuclear microsatellite loci. Historical estimates of gene dispersal distance (based on fine-scale spatial genetic structure) and contemporary estimates of seed and pollen dispersal (based on spatially explicit mating models) were obtained. The results indicated restricted gene flow (gene distance ≤ 45 m, both pollen and seed), no selfing and significant seed and pollen immigration from trees located outside the studied plot but in the close surrounding area. The size of trees (diameter at breast height and height) was significantly associated with female and/or male fertility. The significant fine-scale spatial genetic structure was consistent with the restricted seed and pollen dispersal. Moreover, both estimates of gene dispersal (historical and contemporary) gave congruent results. This suggests that the recent history of logging within the study area has not significantly influenced on patterns of gene flow, which can be explained by the silviculture applied to the stand. The residual tree density maintained species composition, and the homogeneous spatial distribution of trees allowed the maintenance of gene dispersal. The short dispersal distance estimated for these two species has several implications both for understanding the evolution of the species and for defining management, conservation and restoration actions. Future replication of this study in other Nothofagus Patagonian forests would be helpful to validate our conclusions.

Fine-scale spatial genetic structure and clonal distribution of the cold-water coral Lophelia pertusa

Coral Reefs ◽  
2012 ◽  
Vol 31 (4) ◽  
pp. 1135-1148 ◽  
Author(s):  
M. P. Dahl ◽  
R. T. Pereyra ◽  
T. Lundälv ◽  
C. André
Keyword(s):  
Genetic Structure ◽  
Cold Water ◽  
Spatial Genetic Structure ◽  
Fine Scale ◽  
Lophelia Pertusa ◽  
Clonal Distribution ◽  
Water Coral

scholarly journals Fine-scale spatial genetic structure in the frankincense tree Boswellia papyrifera (Del.) Hochst. and implications for conservation

2016 ◽  
Vol 12 (5) ◽  
Author(s):  
A. B. Addisalem ◽  
J. Duminil ◽  
D. Wouters ◽  
F. Bongers ◽  
M. J. M. Smulders
Keyword(s):  
Genetic Structure ◽  
Spatial Genetic Structure ◽  
Fine Scale ◽  
Boswellia Papyrifera

Fine-scale spatial genetic structure of two red oak species, Quercus rubra and Quercus ellipsoidalis

2014 ◽  
Vol 301 (6) ◽  
pp. 1601-1612 ◽  
Author(s):  
Jennifer Lind-Riehl ◽  
Oliver Gailing
Keyword(s):  
Genetic Structure ◽  
Quercus Rubra ◽  
Spatial Genetic Structure ◽  
Red Oak ◽  
Fine Scale ◽  
Quercus Ellipsoidalis
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