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Titolo:
CLOACAL ANATOMY OF PAEDOMORPHIC FEMALE AMBYSTOMA-TALPOIDEUM (CAUDATA,AMBYSTOMATIDAE), WITH COMMENTS ON INTERMORPH MATING AND SPERM STORAGE
Autore:
TRAUTH SE; SEVER DM; SEMLITSCH RD;
Indirizzi:
ARKANSAS STATE UNIV,DEPT BIOL SCI STATE UNIV AR 72467 ST MARYS COLL,DEPT BIOL NOTRE DAME IN 46556 UNIV MISSOURI,DIV BIOL SCI COLUMBIA MO 65211
Titolo Testata:
Canadian journal of zoology
fascicolo: 12, volume: 72, anno: 1994,
pagine: 2147 - 2157
SICI:
0008-4301(1994)72:12<2147:CAOPFA>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
SALAMANDER EURYCEA-CIRRIGERA; AMPHIBIA; COMPETITION; AGGRESSION; PHYLOGENY; PLETHODONTIDAE; SPERMATHECAE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
38
Recensione:
Indirizzi per estratti:
Citazione:
S.E. Trauth et al., "CLOACAL ANATOMY OF PAEDOMORPHIC FEMALE AMBYSTOMA-TALPOIDEUM (CAUDATA,AMBYSTOMATIDAE), WITH COMMENTS ON INTERMORPH MATING AND SPERM STORAGE", Canadian journal of zoology, 72(12), 1994, pp. 2147-2157

Abstract

The cloacal anatomy of paedomorphic female Ambystoma talpoideum was examined using light microscopy and histochemical techniques. Three types of cloacal glands (anterior ventral glands, dorsal glands, and spermathecae) were observed. Glandular morphology and secretory activity were documented from seasonal samples collected in South Carolina. Maximal development of cloacal glands corresponded to a peak in reproductive activity. Sperm-storage glands, the spermathecae, contained sperm in specimens collected from November through February. Although greatlyhypertrophied during the breeding season, the anterior ventral glandscontinue to release secretory material throughout the year. This suggests that these glands could function in capacities other than those related to reproduction. The rudimentary dorsal glands also contain sperm during the breeding season; however, the occurrence of sperm in these glands is considered to be incidental. The cloacal glands of paedomorphs are similar to those of metamorphs. Interbreeding between morphsmay occur and thus facilitate the maintenance of both morphs in nature.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/09/20 alle ore 06:09:26