Premium
Genetic variability of L izard canary breed inferred from pedigree analysis
Author(s) -
Cecchi Francesca,
Ciampolini Roberta,
Giacalone Gianluca,
Paci Gisella
Publication year - 2014
Publication title -
animal science journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.606
H-Index - 38
eISSN - 1740-0929
pISSN - 1344-3941
DOI - 10.1111/asj.12239
Subject(s) - inbreeding , inbreeding depression , breed , biology , population , genetic variability , genetic variation , effective population size , zoology , genetics , demography , genotype , gene , sociology
The genealogical data of 471 (whole population: WP ) L izard canaries of an I talian breeder were analyzed to evaluate the genetic variability of the breed. The reference population ( RP ) comprised 346 living reproductive birds. Average generation interval was 1.61 ± 0.718 for males and 1.72 ± 0.863 for females. The average value of inbreeding ( F ) and relatedness ( AR ) in the RP were 15.83% and 22.63%, while the average increase in inbreeding was estimated to be 6.71% per generation (effective population size = 7.49). The results showed the need to reduce the level of inbreeding which would result in significant loss of genetic variation and in significant inbreeding depression.