No evidence for parental age effects on offspring leukocyte telomere length in free-living Soay sheep.
No evidence for parental age effects on offspring leukocyte telomere length in free-living Soay sheep.
复制标题
没有证据表明父母的年龄对自由生活的绵羊中后代白细胞端粒长度的影响。
DOI:
10.1038/s41598-017-09861-3
复制
发表时间:
2017-08-30
影响因子:
4.6
通讯作者:
Nussey DH
中科院分区:
文献类型:
--
作者:
Froy H;Bird EJ;Wilbourn RV;Fairlie J;Underwood SL;Salvo-Chirnside E;Pilkington JG;Bérénos C;Pemberton JM;Nussey DH
In humans, the effect of paternal age at conception (PAC) on offspring leukocyte telomere length (LTL) is well established, with older fathers thought to pass on longer telomeres to their offspring in their sperm. Few studies have looked for PAC effects in other species, but it has been hypothesised that the effect will be exacerbated in polygamous species with higher levels of sperm competition and production. We test for maternal (MAC) and paternal age at conception effects on offspring LTL in Soay sheep, a primitive breed experiencing strong sperm competition. We use qPCR to measure relative telomere length in 389 blood samples (n = 318 individuals) collected from an unmanaged population of sheep on St Kilda, where individual age and parentage are known. We find no evidence that either MAC or PAC are associated with LTL in offspring across the age range, or when considering only young lambs (n = 164). This is the first study to test for parental age effects on offspring LTL in a wild mammal population, and the results contrast with the findings of numerous human studies that find a PAC effect, as well as predictions of a stronger PAC effect in polygamous species.
登录
查看更多内容
影响因子:
4
作者:
Aston KI;Hunt SC;Susser E;Kimura M;Factor-Litvak P;Carrell D;Aviv A
通讯作者:
Aviv A
影响因子:
4.5
作者:
Aubert G;Baerlocher GM;Vulto I;Poon SS;Lansdorp PM
通讯作者:
Lansdorp PM
DOI:
10.1038/nrg3246
发表时间:
2012-10
期刊:
Nature reviews. Genetics
影响因子:
--
作者:
通讯作者:
--
DOI:
10.1098/rspb.2014.2263
发表时间:
2015-01-22
影响因子:
4.7
作者:
Asghar, Muhammad;Bensch, Staffan;Hasselquist, Dennis
通讯作者:
Hasselquist, Dennis
影响因子:
14.9
作者:
Cawthon, RM
通讯作者:
Cawthon, RM