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Consistent male-male paternity differences across female genotypes

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posted on 2023-05-16, 23:28 authored by Sherman, CDH, Erik WapstraErik Wapstra, Olsson, M
In a recent paper, we demonstrated that male-female genetic relatedness determines male probability of paternity in experimental sperm competition in the Peron's tree frog (Litoria peronii), with a more closely related male out-competing his rival. Here, we test the hypothesis that a male-male difference in siring success with one female significantly predicts the corresponding difference in siring success with another female. With male sperm concentration held constant, and the proportion of viable sperm controlled statistically, the male-male difference in siring success with one female strongly predicted the corresponding difference in siring success with another female, and alone explained more than 62 per cent of the variance in male-male siring differences. This study demonstrates that male siring success is primarily dictated by among-male differences in innate siring success with less influence of male-female relatedness. © 2009 The Royal Society.

History

Publication title

Biology Letters

Volume

5

Pagination

232-234

ISSN

1744-9561

Department/School

School of Natural Sciences

Publisher

The Royal Society

Place of publication

United Kingdom

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in the biological sciences

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