FN Archimer Export Format
PT J
TI SSR-based analysis of clonality, spatial genetic structure and introgression from the Lombardy poplar into a natural population of Populus nigra L. along the Loire River
BT 
AF CHENAULT, Nicolas
   Arnaud-Haond, Sophie
   JUTEAU, Mary
   VALADE, Romain
   ALMEIDA, Jose-Luis
   VILLAR, Marc
   BASTIEN, Catherine
   DOWKIW, Arnaud
AS 1:1;2:2;3:1;4:1;5:3;6:1;7:1;8:1;
FF 1:;2:PDG-REM-EEP-LEP;3:;4:;5:;6:;7:;8:;
C1 INRA, UR Ameliorat Genet & Physiol Forestieres 0588, CS Ardon 40001, F-45075 Orleans 2, France.
   IFREMER, Lab Environm Profond, Ctr Brest, F-29280 Plouzane, France.
   INRA, UE Genet & Biomasse Forestieres 0995, CS Ardon 40001, F-45075 Orleans 2, France.
C2 INRA, FRANCE
   IFREMER, FRANCE
   INRA, FRANCE
SI BREST
SE PDG-REM-EEP-LEP
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-p187
IF 2.335
TC 30
UR https://archimer.ifremer.fr/doc/00065/17617/18016.pdf
LA English
DT Article
DE ;Populus nigra;Lombardy poplar;Clonality;Spatial genetic structure;Introgression;Clonal growth form
AB A scarcity of favourable habitats and introgression from exotic cultivars are two major threats to black poplars (Populus nigra L.) in Europe. Natural vegetative propagation contributes to maintenance of the species in areas where seedling recruitment is limited. Exhaustive sampling of all mature trees in a natural P. nigra stand (413 individuals at recorded positions), genotyping at 11 SSR loci, and a standardized analysis framework resulted in a precise description of clonality in terms of (a) frequency, (b) spatial growth form, and (c) impacts on the overall spatial genetic structure (SGS). The high proportion of replicated genotypes detected resulted in a genotypic richness (R) of 0.47. Up to 18 ramets were found per multilocus lineage (MLL), but 95% of MLLs contained fewer than five ramets (Pareto index beta=1.07). No significant difference in vegetative propagation potential was found between genders. Uneven spatial distribution of ramets, with clustering of clonal ramets (aggregation index A(c)=0.62) and near-zero intermingling between MLLs (clonal dominance index D(c)=0.99), resulted in a 'phalanx' clonal growth form, explaining most of the SGS observed over short distances (0-20 m, Sp=0.0324). Although they did not exhibit the typical columnar shape of the Lombardy poplar (P. nigra var. italica), five trees were found to be probable F(1) hybrids of this old and widely distributed cultivar.
PY 2011
PD DEC
SO Tree Genetics & Genomes
SN 1614-2942
PU Springer Heidelberg
VL 7
IS 6
UT 000299507700013
BP 1249
EP 1262
DI 10.1007/s11295-011-0410-6
ID 17617
ER

EF