A message from the gonads

Donald L. Riddle

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A message from the gonads

机译：性腺的信息

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Animal evolution is commonly viewed as producing diverse, environmentally adapted bodies to propagate the germ line. The evolutionary theory of ageing suggests that genetic limits to lifespan may be inadvertent consequences of evolutionary selection for maximizing that propagation. In other words, trade-offs occur that favour reproductive success over post-reproductive longevity; lifespan should be inversely correlated with fecundity when progeny production diverts resources from the maintenance of somatic (non-reproductive) cells. The germ line contains all the genetic information to specify the soma. But it is also possible that there are other, environmentally modulated instructions for life history that the germ line conveys to the soma to maximize reproduction.

机译：通常认为动物进化产生了多种适应环境的物体来繁殖种系。衰老的进化论认为，寿命的遗传限制可能是进化选择对繁殖最大化的无意后果。换句话说，折衷的发生是生殖成功而不是生殖后的寿命。当子代生产从维持体细胞（非生殖）细胞转移资源时，寿命应与繁殖力成反比。种系包含指定体细胞的所有遗传信息。但是，也可能有其他的，环境调节的生活史指令，将种系传达给体细胞以最大化繁殖。

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来源
《Nature》 |1999年第6734期|p.308-309|共2页
作者
Donald L. Riddle;
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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种 eng
中图分类自然科学总论;
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A message from the gonads

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