Institutional Repository of Key Laboratory of Marine Ecology & Environmental Sciences, CAS
Influences of population density on polyandry and patterns of sperm usage in the marine gastropod Rapana venosa | |
Xue, Dong-Xiu1,2; Zhang, Tao1,2; Liu, Jin-Xian1,2 | |
2016-03-21 | |
发表期刊 | SCIENTIFIC REPORTS |
卷号 | 6 |
文章类型 | Article |
摘要 | Polyandry is a common mating strategy in animals, with potential for sexual selection to continue post-copulation through sperm competition and/or cryptic female choice. Few studies have investigated the influences of population density on polyandry and sperm usage, and paternity distribution in successive broods of marine invertebrates. The marine gastropod Rapana venosa is ideal for investigating how population density influences the frequency of polyandry and elucidating patterns of sperm usage. Two different population density (12 ind/m(3) and 36 ind/m(3)) treatments with two replications were set to observe reproductive behaviors. Five microsatellite markers were used to identify the frequency of multiple paternity and determine paternal contributions to progeny arrays in 120 egg masses. All of the mean mating frequency, mean number of sires and mean egg-laying frequency were higher at high population density treatment relative to low population density treatment, indicating population density is an important factor affecting polyandry. The last sperm donors achieved high proportions of paternity in 74.77% of egg masses, which supported the "last male sperm precedence" hypothesis. In addition, high variance in reproductive success among R. venosa males were detected, which might have an important influence on effective population size. |
DOI | 10.1038/srep23461 |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000372447200002 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.qdio.ac.cn/handle/337002/126217 |
专题 | 海洋生态与环境科学重点实验室 |
作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, 7 Nanhai Rd, Qingdao 266071, Shandong, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266071, Shandong, Peoples R China |
第一作者单位 | 中国科学院海洋研究所 |
推荐引用方式 GB/T 7714 | Xue, Dong-Xiu,Zhang, Tao,Liu, Jin-Xian. Influences of population density on polyandry and patterns of sperm usage in the marine gastropod Rapana venosa[J]. SCIENTIFIC REPORTS,2016,6. |
APA | Xue, Dong-Xiu,Zhang, Tao,&Liu, Jin-Xian.(2016).Influences of population density on polyandry and patterns of sperm usage in the marine gastropod Rapana venosa.SCIENTIFIC REPORTS,6. |
MLA | Xue, Dong-Xiu,et al."Influences of population density on polyandry and patterns of sperm usage in the marine gastropod Rapana venosa".SCIENTIFIC REPORTS 6(2016). |
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文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Influences of popula(703KB) | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 |
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