The impact of diet quality on the velocity, morphology and normality of sperm in the zebra finch Taeniopygia guttata DOI Creative Commons
Callum S. McDiarmid, Laura L. Hurley,

Madiline Le Mesurier

et al.

Journal of Experimental Biology, Journal Year: 2022, Volume and Issue: 225(9)

Published: April 11, 2022

Sperm traits can influence fertilisation success, but there is still much we do not understand about sperm condition dependence, that is, how depend on the male's energy acquisition and allocation. This especially pronounced in avian taxa, despite extensive observational studies sampling wild populations. In this study, collected samples before after experimentally reducing diet quality of wild-derived captive zebra finches small mixed-sex groups, which compared with individuals a control diet. We measured length components (head, midpiece, flagellum total length), proportion normal morphology, were progressively motile swimming velocity (curvilinear velocity; VCL). The only trait found to be impacted by reduced was significant decrease midpiece length. consistent emerging evidence other non-model systems, as well fact alter mitochondrial density structure tissue types. There also over course experiment for both experimental groups (i.e. unrelated diet). largely unchanged morphology emphasizes are important determinants velocity, likely including seminal fluid composition.

Language: Английский

Relationships between sperm morphological traits and sperm swimming performance in wild Great Tits (Parus major) DOI
Sylvain Losdat, Fabrice Helfenstein

Journal of Ornithology, Journal Year: 2018, Volume and Issue: 159(3), P. 805 - 814

Published: March 9, 2018

Language: Английский

Citations

7
Fertilization modes drive the evolution of sperm traits in Baikal sculpins DOI
Takeshi Ito,

Izumi Kinoshita,

Daisuke Tahara

et al.

Journal of Zoology, Journal Year: 2021, Volume and Issue: 314(1), P. 20 - 30

Published: Feb. 20, 2021

Abstract Baikal sculpins are a unique group of fishes, including both externally and internally fertilizing species. Sperm traits, such as morphology motility, predicted to undergo adaptive changes due species fertilization modes. However, studies exploring traits in lacking. Here, we conducted field study investigated sperm three with external ( Cottocomephorus grewingkii , Leocottus kesslerii Paracottus knerii ) one sculpin internal Comephorus dybowskii ). head was spherical types species; however, the cross‐sectional area fertilizer smaller than that fertilizers. This result implies might be adapted swim viscous ovarian fluid. The fertilizer, C. dybowskii, had longer faster‐swimming sperms motility duration fertilizers, perhaps different competition levels. Sperms were only motile isotonic solutions, whereas fertilizers lake waters, suggesting motilities specialized according their external/internal environments. To our knowledge, this is first demonstrate sculpins, which may have evolved adaptively along changing

Language: Английский

Citations

7
Low‐mobility sperm phenotype in the domestic turkey: Impact on sperm morphometry and early embryonic death DOI
Mollie K. Manier,

Glenn R. Welch,

Christiaan van Nispen

et al.

Reproduction in Domestic Animals, Journal Year: 2019, Volume and Issue: 54(3), P. 613 - 621

Published: Jan. 16, 2019

The sperm mobility assay measures the ability of to swim through a dense layer Accudenz® , and phenotype has been shown predict fertility other performance traits in roosters turkeys. In this study, we examined turkey morphometry rates early embryonic death associated with high- low-mobility semen. We also assessed whether hypo-osmotic stress test, which evaluates structural integrity plasma membrane, may be used as faster simpler for viability. confirmed previous work that found high-mobility are more linearly than sperm, were repeatable within males. contrast studies, did not find higher fertility, but was death, though trend significant. High-mobility had longer heads, explained by nuclei, despite shorter acrosomes. Although these faster, midpiece length flagellum differ between sperm. Finally, test.

Language: Английский

Citations

6
Sperm length divergence as a potential prezygotic barrier in a passerine hybrid zone DOI Creative Commons
Emily R. A. Cramer, Gaute Grønstøl, Logan M. Maxwell

et al.

Ecology and Evolution, Journal Year: 2021, Volume and Issue: 11(14), P. 9489 - 9497

Published: June 16, 2021

Abstract The saltmarsh sparrow Ammospiza caudacuta and Nelson's A. nelsoni differ in ecological niche, mating behavior, plumage, but they hybridize where their breeding distributions overlap. In this advanced hybrid zone, past interbreeding current backcrossing result substantial genomic introgression both directions, although few hybrids are currently produced most locations. However, because species nonterritorial have only brief male–female interactions, it is difficult to determine what extent assortative explains the low frequency of offspring. Since females often copulate with multiple males, a role sperm as postcopulatory prezygotic barrier appears plausible. Here, we show that length differs between two among‐male variation consistent strong sexual selection on cells. We hypothesize divergence may constitute reproductive species, co‐evolves size specialized female storage tubules. Sperm does not appear act postzygotic barrier, from was unexceptional.

Language: Английский

Citations

6
The impact of diet quality on the velocity, morphology and normality of sperm in the zebra finch Taeniopygia guttata DOI Creative Commons
Callum S. McDiarmid, Laura L. Hurley,

Madiline Le Mesurier

et al.

Journal of Experimental Biology, Journal Year: 2022, Volume and Issue: 225(9)

Published: April 11, 2022

Sperm traits can influence fertilisation success, but there is still much we do not understand about sperm condition dependence, that is, how depend on the male's energy acquisition and allocation. This especially pronounced in avian taxa, despite extensive observational studies sampling wild populations. In this study, collected samples before after experimentally reducing diet quality of wild-derived captive zebra finches small mixed-sex groups, which compared with individuals a control diet. We measured length components (head, midpiece, flagellum total length), proportion normal morphology, were progressively motile swimming velocity (curvilinear velocity; VCL). The only trait found to be impacted by reduced was significant decrease midpiece length. consistent emerging evidence other non-model systems, as well fact alter mitochondrial density structure tissue types. There also over course experiment for both experimental groups (i.e. unrelated diet). largely unchanged morphology emphasizes are important determinants velocity, likely including seminal fluid composition.

Language: Английский

Citations

3