Zobrazeno 1 - 10
of 64
pro vyhledávání: '"J Stewart-Savage"'
Publikováno v:
Scopus-Elsevier
Intraspecific variation in life-history strategy provides a valuable opportunity for examining how natural selection acts on life-history variants to mold reproductive strategies. Evaluating the consequences of selection requires knowledge of the ran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d800d1a13571baf0fdb4cc62cea3dca
https://pubmed.ncbi.nlm.nih.gov/28581869
https://pubmed.ncbi.nlm.nih.gov/28581869
Autor:
Aida Blasco, J. Stewart-Savage, Gregory S. Kopf, Jorge G. Tezón, Patricia V. Miranda, Pablo E. Visconti, Licia Battaglia
Publikováno v:
Biology of Reproduction. 61:76-84
Capacitation is a prerequisite for successful fertilization by mammalian spermatozoa. This process is generally observed in vitro in defined NaHCO3-buffered media and has been shown to be associated with changes in cAMP metabolism and protein tyrosin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b35ea12bc62790822a1a8a3792c641a
https://doi.org/10.1095/biolreprod61.1.76
https://doi.org/10.1095/biolreprod61.1.76
Publikováno v:
The Biological Bulletin. 196:63-69
Colonies of the ascidian Botryllus schlosseri (a cyclical hermaphrodite) exhibit extreme variability in egg production, and there is a large genetic component to this phenotypic variation. Therefore, the developmental bases of variation among differe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f287d93465f6549551c5e5d3acbcea65
https://doi.org/10.2307/1543168
https://doi.org/10.2307/1543168
Autor:
Philip O. Yund, J. Stewart-Savage
Publikováno v:
The Journal of Experimental Zoology. 279:620-625
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f64b481235e1530a55fc4fdddd2f47fe
https://doi.org/10.1002/(sici)1097-010x(19971215)279:6<620::aid-jez10>3.0.co
https://doi.org/10.1002/(sici)1097-010x(19971215)279:6<620::aid-jez10>3.0.co
Publikováno v:
Molecular Reproduction and Development. 47:334-340
Earlier work has demonstrated that hamster eggs that do not release a second polar body after fertilization in vitro lack a block to polyspermy (Stewart-Savage and Bavister, 1987: Gamete Res 18:333–338). Since polar body release requires microfilam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::781880dd521a4b900e75ffbf1d4c40db
https://doi.org/10.1002/(sici)1098-2795(199707)47:3<334::aid-mrd12>3.0.co
https://doi.org/10.1002/(sici)1098-2795(199707)47:3<334::aid-mrd12>3.0.co
Autor:
J. Stewart-Savage, Laura M. Legendre
Publikováno v:
Biology of Reproduction. 49:82-88
The influence of the cumulus on gamete interaction was investigated in naturally and precociously ovulated eggs from superstimulated (eCG) hamsters. Inseminations were performed in which the absolute gamete ratio (sperm/egg) was held constant, but th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02c883e1ada37448eadab13a64350acc
https://doi.org/10.1095/biolreprod49.1.82
https://doi.org/10.1095/biolreprod49.1.82
Publikováno v:
Journal of Electron Microscopy Technique. 17:369-383
The anuran egg is polarized along its animal-vegetal axis and becomes bilaterally symmetrical before first cleavage. Functional sperm entry is regionally restricted to the animal hemisphere of the egg, and functional sperm entry does not occur after
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::73ae68234abb81190904c4e1a91da335
https://doi.org/10.1002/jemt.1060170402
https://doi.org/10.1002/jemt.1060170402
Publikováno v:
Journal of experimental zoology. Part A, Comparative experimental biology. 297(2)
Phenotypic plasticity is the capability of a genotype to produce different phenotypes in different environments. Previous studies have indicated phenotypic variability in asexual, male, and female reproduction in Botryllus schlosseri, a hermaphroditi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7925a08b6614a44b037cf17836fa0e35
https://pubmed.ncbi.nlm.nih.gov/12945754
https://pubmed.ncbi.nlm.nih.gov/12945754
Autor:
J. Stewart-Savage
Publikováno v:
Molecular Reproduction and Development. 36:328-330
One of the problems in assaying sperm capacitation is that live eggs mount a block to polyspermy at the zona pellucida. To circumvent this problem, researchers have started to use salt-stored eggs to assay sperm capacitation (Boatman et al., Gamete R
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7195d421aeae3a01ecb65147a226cec6
https://doi.org/10.1002/mrd.1080360307
https://doi.org/10.1002/mrd.1080360307
Publikováno v:
The Biology of Ascidians ISBN: 9784431669845
The reproductive effort of Botryllus schlosseri varies both within and between populations. Here we present evidence of an environmental affect on the reproductive effort of colonies from two locations on the Northeast coast of America. Colonies from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5aad394a8f107ab3ac6a2c83a1e1ba5a
https://doi.org/10.1007/978-4-431-66982-1_49
https://doi.org/10.1007/978-4-431-66982-1_49
