@article{fdi:010066205, title = {{M}onitoring of genetic diversity in {T}aiwan conserved chickens assessed by pedigree and molecular data}, author = {{P}ham, {M}. {H}. and {T}ran, {X}. {H}. and {B}erthouly, {C}{\'e}cile and {T}ixier-{B}oichard, {M}. and {C}hen, {C}. {F}. and {L}ee, {Y}. {P}.}, editor = {}, language = {{ENG}}, abstract = {{L}ocal chicken breeds face high risks of extinction. {A} conservation program has been set up for eight {T}aiwan conserved chicken populations ({TCP}). {T}he research presented here aims at estimating effective population size ({N}-e) and conservation priorities of {TCP} populations using pedigree and molecular data. {G}enome diversity was assessed by genotyping 22 microsatellite markers in 45-50 animals per breed. {R}esults from the pedigree-based analysis showed that most {N}-e values ranged between 50 and 100 except the {S}hek-{K}i breed which exhibited the smallest value (46) so that most breeds could be considered as safe from a conservation point of view. {T}he change in inbreeding per generation varied between 0.7% to 1.9% depending on breeds. {N}-e values estimated from molecular-based analysis were generally lower than those estimated from pedigree-based analysis, suggesting a loss of diversity between the onset of the conservation program (from 1983 to 1995) and the start of pedigree recording in 2002. {A}ccording to {N}-e values, the {TCP} populations do not appear to be at a high risk, but mating plans by a rotation mating system should be designed in order to limit the increase in inbreeding. {R}egarding the conservation strategy within the {TCP}, the {S}hek-{K}i and {H}ua-{T}ung breeds showed the highest priority for conservation in terms of genetic risk status and contributions to total diversity across pedigree- and molecular-based approaches. {I}n conclusion, this study of {TCP} populations shows how different types of data can be combined to define conservation priorities considering risk, diversity, or utility of local chicken breeds.}, keywords = {{C}onservation priorities ; {E}ffective population sizes ; {I}nbreeding ; {M}olecular data ; {P}edigree information ; {TAIWAN}}, booktitle = {}, journal = {{L}ivestock {S}cience}, volume = {184}, numero = {}, pages = {85--91}, ISSN = {1871-1413}, year = {2016}, DOI = {10.1016/j.livsci.2015.12.013}, URL = {https://www.documentation.ird.fr/hor/fdi:010066205}, }