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Titolo:
Mechanisms of reproductive suppression in female pine voles (Microtus pinetorum)
Autore:
Solomon, NG; Brant, CL; Callahan, PA; Steinly, BA;
Indirizzi:
Miami Univ, Dept Zool, Oxford, OH 45056 USA Miami Univ Oxford OH USA 45056 iami Univ, Dept Zool, Oxford, OH 45056 USA
Titolo Testata:
REPRODUCTION
fascicolo: 2, volume: 122, anno: 2001,
pagine: 297 - 304
SICI:
1470-1626(200108)122:2<297:MORSIF>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
DAMARALAND MOLE-RATS; SOCIALLY INDUCED INFERTILITY; MONKEYS CALLITHRIX-JACCHUS; MARMOSET MONKEYS; EXOGENOUS GNRH; PRAIRIE VOLES; LH RESPONSES; HETEROCEPHALUS-GLABER; CRYPTOMYS-DAMARENSIS; OVARIAN CYCLICITY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
56
Recensione:
Indirizzi per estratti:
Indirizzo: Brant, CL Miami Univ, Dept Zool, Oxford, OH 45056 USA Miami Univ Oxford OH USA 45056 Dept Zool, Oxford, OH 45056 USA
Citazione:
N.G. Solomon et al., "Mechanisms of reproductive suppression in female pine voles (Microtus pinetorum)", REPRODUCT, 122(2), 2001, pp. 297-304

Abstract

In co-operatively breeding birds and mammals, philopatric females are often reproductively suppressed. Many studies have focused on the functional significance of reproductive suppression, but further investigation of the mechanisms involved is required for a complete understanding of this process. This study investigated whether reproductive suppression in non-reproductive female pine voles (Microtus pinetorum) occurs as a result of lack of gamete maturation or lack of increase in LH. The behaviour of male pine voles was also examined to determine whether they show a preference for the mother versus her daughter, as lack of male stimulation may inhibit an increase of LH in daughter pine voles. Ovarian development and circulating LH concentrations were investigated in females housed with a prospective mate in thepresence or absence of a parent. Maturation of gametes was not affected bythe presence of a parent. In the presence of the mother, there was no increase in LH, as was observed in females housed with or exposed to a novel male. Males spent more time with mothers and possibly showed a preference formating with the mother. These results are consistent with the contention that ovulation does not occur in female pine voles housed in the presence oftheir mother; however, it is not clear whether the lack of ovulation is caused by lack of stimulation from the male or suppression by the mother.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/04/20 alle ore 08:59:13