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Linking sperm length and velocity: the importance of intramale variation
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| Zeitschriftentitel: | Biology Letters |
|---|---|
| Personen und Körperschaften: | , , |
| In: | Biology Letters, 6, 2010, 6, S. 797-799 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
The Royal Society
|
| Schlagwörter: |
| author_facet |
Fitzpatrick, John L. Garcia-Gonzalez, Francisco Evans, Jonathan P. Fitzpatrick, John L. Garcia-Gonzalez, Francisco Evans, Jonathan P. |
|---|---|
| author |
Fitzpatrick, John L. Garcia-Gonzalez, Francisco Evans, Jonathan P. |
| spellingShingle |
Fitzpatrick, John L. Garcia-Gonzalez, Francisco Evans, Jonathan P. Biology Letters Linking sperm length and velocity: the importance of intramale variation General Agricultural and Biological Sciences Agricultural and Biological Sciences (miscellaneous) |
| author_sort |
fitzpatrick, john l. |
| spelling |
Fitzpatrick, John L. Garcia-Gonzalez, Francisco Evans, Jonathan P. 1744-9561 1744-957X The Royal Society General Agricultural and Biological Sciences Agricultural and Biological Sciences (miscellaneous) http://dx.doi.org/10.1098/rsbl.2010.0231 <jats:p> Selection imposed through sperm competition is commonly thought to promote the evolution of longer sperm, since sperm length is assumed to be positively associated with sperm swimming velocity. Yet, the basis for this assumption remains controversial, and there is surprisingly little intraspecific evidence demonstrating such a link between sperm form and function. Here, we show that sperm length and velocity are highly correlated in the sea urchin <jats:italic>Heliocidaris erythrogramma</jats:italic> , but importantly we report that failure to account for within-male variation in these sperm traits can obscure this relationship. These findings, in conjunction with the mounting evidence for extremely high levels of intra-specific variance in sperm traits, suggest that a functional link between sperm morphology and velocity may be more prevalent than what current evidence suggests. Our findings also suggest that selection for faster swimming sperm may promote the evolution of longer sperm, thereby supporting recent findings from macroevolutionary studies. </jats:p> Linking sperm length and velocity: the importance of intramale variation Biology Letters |
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| title |
Linking sperm length and velocity: the importance of intramale variation |
| title_unstemmed |
Linking sperm length and velocity: the importance of intramale variation |
| title_full |
Linking sperm length and velocity: the importance of intramale variation |
| title_fullStr |
Linking sperm length and velocity: the importance of intramale variation |
| title_full_unstemmed |
Linking sperm length and velocity: the importance of intramale variation |
| title_short |
Linking sperm length and velocity: the importance of intramale variation |
| title_sort |
linking sperm length and velocity: the importance of intramale variation |
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General Agricultural and Biological Sciences Agricultural and Biological Sciences (miscellaneous) |
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http://dx.doi.org/10.1098/rsbl.2010.0231 |
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2010 |
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797-799 |
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<jats:p>
Selection imposed through sperm competition is commonly thought to promote the evolution of longer sperm, since sperm length is assumed to be positively associated with sperm swimming velocity. Yet, the basis for this assumption remains controversial, and there is surprisingly little intraspecific evidence demonstrating such a link between sperm form and function. Here, we show that sperm length and velocity are highly correlated in the sea urchin
<jats:italic>Heliocidaris erythrogramma</jats:italic>
, but importantly we report that failure to account for within-male variation in these sperm traits can obscure this relationship. These findings, in conjunction with the mounting evidence for extremely high levels of intra-specific variance in sperm traits, suggest that a functional link between sperm morphology and velocity may be more prevalent than what current evidence suggests. Our findings also suggest that selection for faster swimming sperm may promote the evolution of longer sperm, thereby supporting recent findings from macroevolutionary studies.
</jats:p> |
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| description | <jats:p> Selection imposed through sperm competition is commonly thought to promote the evolution of longer sperm, since sperm length is assumed to be positively associated with sperm swimming velocity. Yet, the basis for this assumption remains controversial, and there is surprisingly little intraspecific evidence demonstrating such a link between sperm form and function. Here, we show that sperm length and velocity are highly correlated in the sea urchin <jats:italic>Heliocidaris erythrogramma</jats:italic> , but importantly we report that failure to account for within-male variation in these sperm traits can obscure this relationship. These findings, in conjunction with the mounting evidence for extremely high levels of intra-specific variance in sperm traits, suggest that a functional link between sperm morphology and velocity may be more prevalent than what current evidence suggests. Our findings also suggest that selection for faster swimming sperm may promote the evolution of longer sperm, thereby supporting recent findings from macroevolutionary studies. </jats:p> |
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| spelling | Fitzpatrick, John L. Garcia-Gonzalez, Francisco Evans, Jonathan P. 1744-9561 1744-957X The Royal Society General Agricultural and Biological Sciences Agricultural and Biological Sciences (miscellaneous) http://dx.doi.org/10.1098/rsbl.2010.0231 <jats:p> Selection imposed through sperm competition is commonly thought to promote the evolution of longer sperm, since sperm length is assumed to be positively associated with sperm swimming velocity. Yet, the basis for this assumption remains controversial, and there is surprisingly little intraspecific evidence demonstrating such a link between sperm form and function. Here, we show that sperm length and velocity are highly correlated in the sea urchin <jats:italic>Heliocidaris erythrogramma</jats:italic> , but importantly we report that failure to account for within-male variation in these sperm traits can obscure this relationship. These findings, in conjunction with the mounting evidence for extremely high levels of intra-specific variance in sperm traits, suggest that a functional link between sperm morphology and velocity may be more prevalent than what current evidence suggests. Our findings also suggest that selection for faster swimming sperm may promote the evolution of longer sperm, thereby supporting recent findings from macroevolutionary studies. </jats:p> Linking sperm length and velocity: the importance of intramale variation Biology Letters |
| spellingShingle | Fitzpatrick, John L., Garcia-Gonzalez, Francisco, Evans, Jonathan P., Biology Letters, Linking sperm length and velocity: the importance of intramale variation, General Agricultural and Biological Sciences, Agricultural and Biological Sciences (miscellaneous) |
| title | Linking sperm length and velocity: the importance of intramale variation |
| title_full | Linking sperm length and velocity: the importance of intramale variation |
| title_fullStr | Linking sperm length and velocity: the importance of intramale variation |
| title_full_unstemmed | Linking sperm length and velocity: the importance of intramale variation |
| title_short | Linking sperm length and velocity: the importance of intramale variation |
| title_sort | linking sperm length and velocity: the importance of intramale variation |
| title_unstemmed | Linking sperm length and velocity: the importance of intramale variation |
| topic | General Agricultural and Biological Sciences, Agricultural and Biological Sciences (miscellaneous) |
| url | http://dx.doi.org/10.1098/rsbl.2010.0231 |