Pryor Devon Lang, Ralls Katherine
Santa Barbara Zoo, Santa Barbara, California.
Center for Conservation Genomics, Smithsonian Conservation Biology Institute, National Zoological Park, Washington, District of Columbia.
Zoo Biol. 2017 Jan;36(1):1-4. doi: 10.1002/zoo.21335. Epub 2016 Nov 15.
Eight pairs of California Condors (Gymnogyps californianus) have produced 12 chicks with 14 tail feathers instead of the normal 12. The 14 tail feather trait appears to follow an autosomal recessive pattern of inheritance and is not known to be deleterious. The putative allele for the trait was present in at least seven of the 13 founders of the population. The 14 tail feather allele is the second recessive allele discovered in the condor population. Due to the founder effect, which changes the frequency of many formerly rare recessive alleles, and genetic management to minimize mean kinship, which reduces the expression of recessive traits, it is likely that this population carries other recessive alleles that have not yet been detected. Zoo Biol. 36:1-4, 2017. © 2016 Wiley Periodicals, Inc.
八对加州兀鹫（加州神鹫，学名：Gymnogyps californianus）繁育出了12只雏鸟，这些雏鸟有14根尾羽，而非正常的12根。14根尾羽这一特征似乎遵循常染色体隐性遗传模式，且并无有害影响。该种群的13个奠基者中至少有7个携带了这一特征的假定等位基因。14根尾羽等位基因是在加州兀鹫种群中发现的第二个隐性等位基因。由于奠基者效应（它改变了许多以前罕见的隐性等位基因的频率）以及为使平均亲缘系数最小化而进行的遗传管理（这减少了隐性性状的表达），该种群很可能还携带其他尚未被检测到的隐性等位基因。《动物园生物学》第36卷：第1 - 4页，2017年。© 2016威利期刊公司
