al. (2002), testes and accessory glands were dissected in phosphate-buffered saline (PBS). The organs of "sex" with "treatment" and "line in treatment"). Measures of testes and accessory gland size were gland size in the sex ratio selection lines. The ...
E-print Network
BackgroundInternal reproductive organ size is an important determinant of male reproductive success. While the response of testis length to variation in the intensity of sperm competition is well documented across many taxa, few studies address the importance of testis size in determining other components of male reproductive success (such as mating ...
PubMed Central
... Title : Accessory Sexual Glands of Male 'Blattella ... of development of the reproductive organs. Descriptors : (*INSECTS, *SEX GLANDS), MALES ...
DTIC Science & Technology
Polyandry in hymenopteran social insects is surprisingly rare, despite its likely colony-level fitness benefits. Ordinarily, a male's fitness will be at odds with that of a colony when the genetic representation within it is diluted by multiple mating by the queen. Consequently, males are expected to be under selection to limit female re-mating, for example via secretions of their ...
Morphological studies in male reproductive system of insect, and accessory glands functions, can contribute to the knowledge of reproductive aspects in Triatominae. The present study aims to describe the structure of male reproductive system under scanning electron microscopy, and the ultrastructure of accessory ...
PubMed
... seventeen species) were dissected under magnification, their internal reproductive systems were photographed and the volumes of their male ... spheroids. In addition, a photograph of the male reproductive...
NBII National Biological Information Infrastructure
The present invention provides a number of accessory gland proteins from Drosophila. The invention also provides an accessory gland protein which is toxic to insect cells and can be used to kill or inhibit the development of insects. Methods of controllin...
National Technical Information Service (NTIS)
... seasonal cyclicity of the testes and accessory sex glands are described and illustrated. Accessory sex glands undergo an annual cycle in synchrony with the ... ...
... The adrenergic innervation of the vas deferens and the accessory male glands of some mammals, and the presence of adrenaline and chromaffin ...
Very few cases of pheochromocytoma in functional accessory adrenal glands have been documented in literature. We present a twenty-four year old Nigerian female who presented with pheochromocytoma. Investigations revealed a suprarenal mass, which was diagnosed as an accessory gland adrenal tumour at surgery. This ...
We present herein a case of right axillary accessory breast associated with galactorrhea in an adolescent girl. A 14-year-old Japanese girl presented with an 11-month history of a tender, subcutaneous lesion in the right axillary fossa. Seven months later, she experienced menarche. Subsequently, the patient noticed pressure-induced galactorrhea from both nipples. Physical ...
and female size in mediating sexual con ict. Relationships between males' size and their in uence upon female the animal king- dom, the prevalence of male harm to females is not known. Sexually antagonistic coevolution A male accessory gland peptide that regulates reproductive behavior of female D. melanogas- ter. ...
Metacestodes of Hymenolepis diminuta affect several aspects of female reproductive physiology in Tenebrio molitor and such effects are mediated via the endocrine system. The effects on male reproduction are less well known and were studied with respect to the Bean-Shaped Accessory Glands (BAGs). The size and wet and dry weight of BAGs ...
We herein describe a case of accessory parotid gland tumor, including diagnosis and surgical approach. The accessory parotid gland is salivary tissue separated from the main parotid gland and lying on masseter muscle. It has secondary duct empting into the Stensen's duct. The ...
organs by Drew (1969), there have been no ultra- structural studies of the male reproductive accessory Biology of Invertebrates, vol. III. Wiley, Chichester, pp. 319�471 (Accessory Sex Glands). Gillott, CUltrastructure of male reproductive accessory glands and ejaculatory duct in the ...
Ultrastructure of male reproductive accessory glands and ejaculatory duct in the Queensland fruit fly (Q-fly), Bactrocera tryoni, were investigated and compared with those of other tephritid flies. Male accessory glands were found to comprise one pair of mesodermic glands and three pairs of ...
During copulation, male insects pass accessory gland components to the female with the spermatophore. These gifts can affect female reproductive behaviour, ovulation and oviposition. Here, we show that female mealworm beetles, Tenebrio molitor, mated with males infected with metacestodes of the rat tapeworm, Hymenolepis diminuta, produced significantly ...
manipulated matings of P. greeni fireflies to test the hypothesis that postcopulatory paternity success might and either testes or male accessory gland size. It is possible that differences in male paternity mightORIGINAL ARTICLE doi:10.1111/j.1558-5646.2007.00033.x MALE COURTSHIP ATTRACTIVENESS AND PATERNITY
The accessory glands of seven species of male chiropterans are described. The unpaired prostate and paired Cowper's glands occur in all the species. The seminal vesicles are present only in Cynopterus and Taphozous. The ampullary glands occur in all the species except Cynopterus sphinx. The presence of solid ...
... for anatomic, morphologic, and histologic examination of the accessory sex organs. The 2nd group consisted of castrated animals. Six ... determine the effect of absence of testosterone on accessory sex or...
... the relative importance of sperm and accessory gland fluid in sperm displacement. For example, were accessory gland fluid transfer continuous ... a major factor determining the magnitude of sperm displace...
... Pituitary gland and gonads from both sexes; uterus and ... as well as in other organs, were graded ... of the prostate and other accessory sex glands is ...
... reproduction, reproductive glands, ultrastructure, Orthoptera, Gryllidae Introduction The reproductive system of female insects commonly includes a pair of ... ...
... and passive movement in the sexual passages of ... it a secretion of the accessory sex glands of ... waxy substance, originat- ing from the Zhene organ. ...
... Sexes, numbers, stage of mosquitoes at the time of collection ... percent infection of selected tissues and organs following an ... Accessory Gland ...
... of spleen, thymus and accessory sex glands. ... were not consistent for both sexes (kidney weights ... lesions observed in reproductive organs of mature ...
... and decline with progressive organ maturation, whereas ... for the formation of arborized organs that span ... processes in male accessory sex glands. ...
... of the vas deferens and the accessory male genital gland; Distribution and function of adrenergic nerves in the rabbit fallopian tube; Effects of acute ...
... Abstract : Sperm cells collected from mammals by electroejaculation or with an ... by secretions and fluids from the accessory glands, cell debris, and ...
The male accessory glands in Triatoma are tubular and produce substances with some functions related to production of the spermatophore. In the current study, the cytochemistry of male accessory glands was evaluated in starved Triatoma brasiliensis and adult Triatoma melanica. The storage of carbohydrates and ...
. Similar innervation and musculature can be seen in the male accessory glands of honeybee drones (Landim, 2007, 2008). Whereas target sites of male accessory gland fluids have been mapped in female Drosophila and protein patterns of honey bee drone accessory glands. ...
Roe deer are seasonal breeders with a short rutting season from mid-July to mid-August. The seasonality of reproductive activity in males is associated with cyclic changes between growth and involution of both testes and the accessory sex glands. This study characterizes morphological and functional parameters of these organs prior to, during and after ...
The present work examines the relationship between seasonal changes in testicular function, accessory gland size, and horn growth in Iberian ibexes, as well as the relationship between these changes and the resistance of ibex spermatozoa to freezing-thawing. The size of the bulbourethral glands ...
Female reproductive accessory glands of the medfly Ceratitis capitata produce a secretion with antibacterial activity mainly ascribed to ceratotoxin peptides. To study whether the secretion from the accessory glands of the female protects the eggs and early larva from microbes, we examined whether ceratotoxins and ...
Your pituitary gland is a pea-sized gland at the base of your brain. The pituitary is the "master control gland" - it makes hormones that affect growth and the ...
MedlinePLUS
The spermatheca and the accessory glands of the collembolan Orchesella villosa are described for the first time. Both organs exhibit ultrastructural differences, according to the time of the intermolt in which the specimens were observed. A thick cuticular layer lines the epithelial cells of the accessory glands. ...
