Maximum shell size, growth rate, and maturation age correlate with longevity in bivalve molluscs.
Maximum shell size, growth rate, and maturation age correlate with longevity in bivalve molluscs.
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DOI：
10.1093/gerona/glq172
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发表时间：
2011-02
期刊：
影响因子：
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通讯作者：
I. Ridgway;Christopher A. Richardson;Steven N. Austad
中科院分区：
文献类型：
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作者：
I. Ridgway;Christopher A. Richardson;Steven N. Austad
双壳类软体动物是新发现的成功衰老的模型，这个无脊椎动物群包括Arctica islandica，具有最长的后生动物寿命。尽管双壳类动物的生活史特征与最大年龄的关系越来越受到关注，但它们的生活史特征并不像脊椎动物模型衰老生物那样得到全面的了解。我们探讨了异速生长的寿命和发育时间表（成熟时间和生长速度）和寿命的双壳类之间的关系。采用传统的非系统发育方法和非系统发育独立对比方法，分析了这些生活史参数之间的关系。它表明，在双壳类，最大壳的大小，发展和增长率都与寿命。我们的发现支持了哺乳动物和鱼类生活史模式的观察。这是第一次调查寿命之间的关系，大小和整个组的发展时间表，并加强了控制系统发育的独立性的结果。
Bivalve molluscs are newly discovered models of successful aging, and this invertebrate group includes Arctica islandica, with the longest metazoan life span. Despite an increasing biogerontological focus on bivalves, their life history traits in relation to maximum age are not as comprehensively understood as those in vertebrate model aging organisms. We explore the allometric scaling of longevity and the relationship between development schedules (time to maturity and growth rate) and longevity in the Bivalvia. Using a traditional nonphylogenetic approach and the phylogenetically independent contrasts method, the relationship among these life history parameters is analyzed. It is demonstrated that in bivalves, maximum shell size, development, and growth rates all associate with longevity. Our findings support the observations of life history patterns in mammals and fish. This is the first investigation into the relationship among longevity, size, and development schedules throughout this group, and the results strengthened by the control for phylogenetic independence.