Genetic Variation and Aging
Life span is subject to genetic modification in yeasts, nematodes, fruit flies, mice, humans, and other vertebrates and invertebrates. There are a few single-gene mutants known that extend life span in yeast and nematodes; in other experimental systems the character is treated quantitatively, and ge...
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Published in | Annual review of genetics Vol. 29; no. 1; pp. 553 - 575 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
Palo Alto, CA 94303-0139
Annual Reviews
01.01.1995
4139 El Camino Way, P.O. Box 10139 Annual Reviews, Inc USA |
Subjects | |
Online Access | Get full text |
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Summary: | Life span is subject to genetic modification in yeasts, nematodes, fruit flies, mice, humans, and other vertebrates and invertebrates. There are a few single-gene mutants known that extend life span in yeast and nematodes; in other experimental systems the character is treated quantitatively, and generally has a low to moderate heritability. Life span responds to artificial selection in Drosophila and Caenorhabditis. There are many candidate genes presently under investigation, including the anti-oxidizing enzymes and heat-shock proteins. The main evolutionary models of senescence are antagonistic pleiotropy and mutation accumulation, neither of which has substantial experimental support. The incorporation of analytical techniques from demography is playing an increasing role in research on aging. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-3 content type line 23 ObjectType-Review-1 |
ISSN: | 0066-4197 1545-2948 |
DOI: | 10.1146/annurev.ge.29.120195.003005 |