DOI: 10.5061/dryad.jd87f
title: Data from: An analytical framework for estimating fertilization bias and the fertilization set from multiple sperm-storage organs

description: How sperm from competing males are used to fertilize eggs is poorly
 understood, yet has important implications for postcopulatory sexual
 selection. Sperm may be used in direct proportion to their numerical
 representation within the fertilization set or with a bias toward one male
 over another. Previous theoretical treatments have assumed a single
 sperm-storage organ, but many taxa possess multiple organs or store sperm
 within multiple regions of the reproductive tract. In Drosophila, females
 store sperm in two distinct storage organ types: the seminal receptacle
 (SR) and the paired spermathecae. Here, we expand previous
 'raffle' models to describe 'fertilization bias'
 independently for sperm within the SR and the spermathecae and estimate
 the fertilization set based on the relative contribution of sperm from the
 different sperm-storage organ types. We apply this model to three closely
 related species to reveal rapid divergence in the fertilization set and
 the potential for female sperm choice.
description: Number of progeny and
 sperm in storage for D. melanogasterNA indicates no data.
 For methods, see Manier, M.K., J.M. Belote, S. Lüpold, K.S. Berben, O.
 Ala-Honkola, W.F. Collins and S. Pitnick. 2013. Rapid diversification of
 sperm precedence traits and processes among three sibling Drosophila
 species. Evolution in press.; Manier, M.K., J.M. Belote, K.S. Berben, D.
 Novikov, W.T. Stuart and S. Pitnick. 2010. Resolving mechanisms of
 competitive fertilization success in D. melanogaster. Science 328:
 354-357. Variables: N1 – number of progeny sired by the first male to
 mate. N2 - number of progeny sired by the second male to mate. SR1 –
 number of first-male sperm in the SR. SR2 – number of second-male sperm in
 the SR. Sp1 – number of first-male sperm in both spermathecae combined.
 Sp2 – number of second-male sperm in both spermathecae
 combined.mel.txtNumber of progeny and sperm in storage for D. simulansNA indicates no data. For methods and analysis, see Manier, M.K., J.M. Belote, S. Lüpold, K.S. Berben, O. Ala-Honkola, W.F. Collins and S. Pitnick. 2013. Rapid diversification of sperm precedence traits and processes among three sibling Drosophila species. Evolution in press.; Manier, M.K., J.M. Belote, K.S. Berben, D. Novikov, W.T. Stuart and S. Pitnick. 2010. Resolving mechanisms of competitive fertilization success in D. melanogaster. Science 328: 354-357. Variables: N1 – number of progeny sired by the first male to mate. N2 - number of progeny sired by the second male to mate. SR1 – number of first-male sperm in the SR. SR2 – number of second-male sperm in the SR. Sp1 – number of first-male sperm in both spermathecae combined. Sp2 – number of second-male sperm in both spermathecae combinedsim.txtNumber of progeny and sperm in storage for D. mauritianaNA indicates no data. For methods and analysis, see Manier, M.K., J.M. Belote, S. Lüpold, K.S. Berben, O. Ala-Honkola, W.F. Collins and S. Pitnick. 2013. Rapid diversification of sperm precedence traits and processes among three sibling Drosophila species. Evolution in press.; Manier, M.K., J.M. Belote, K.S. Berben, D. Novikov, W.T. Stuart and S. Pitnick. 2010. Resolving mechanisms of competitive fertilization success in D. melanogaster. Science 328: 354-357. Variables: N1 – number of progeny sired by the first male to mate. N2 - number of progeny sired by the second male to mate. SR1 – number of first-male sperm in the SR. SR2 – number of second-male sperm in the SR. Sp1 – number of first-male sperm in both spermathecae combined. Sp2 – number of second-male sperm in both spermathecae combinedmaur.txt