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Titolo:
GENETIC COMPATIBILITY BETWEEN SEXUAL AND CLONAL GENOMES IN LOCAL-POPULATIONS OF THE HYBRIDOGENETIC RANA-ESCULENTA COMPLEX
Autore:
SEMLITSCH RD; SCHMIEDEHAUSEN S; HOTZ H; BEERLI P;
Indirizzi:
UNIV MISSOURI,DIV BIOL SCI COLUMBIA MO 65211 UNIV ZURICH,INST ZOOL CH-8057 ZURICH SWITZERLAND UNIV ZURICH,ZOOL MUSEUM CH-8057 ZURICH SWITZERLAND
Titolo Testata:
Evolutionary ecology
fascicolo: 5, volume: 10, anno: 1996,
pagine: 531 - 543
SICI:
0269-7653(1996)10:5<531:GCBSAC>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
LIFE-HISTORY TRAITS; INTERSPECIFIC COMPETITION; PSEUDACRIS-TRISERIATA; AMBYSTOMA-TALPOIDEUM; UNISEXUAL FISH; MONACHA-LUCIDA; HYBRID FROG; WATER FROG; POECILIOPSIS; TADPOLES;
Keywords:
AMPHIBIAN; BODY SIZE; CLONAL; GENETIC COMPATIBILITY; GROWTH; HYBRIDOGENESIS; LOCAL ADAPTATION; METAMORPHOSIS; RANA ESCULENTA; TADPOLE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
57
Recensione:
Indirizzi per estratti:
Citazione:
R.D. Semlitsch et al., "GENETIC COMPATIBILITY BETWEEN SEXUAL AND CLONAL GENOMES IN LOCAL-POPULATIONS OF THE HYBRIDOGENETIC RANA-ESCULENTA COMPLEX", Evolutionary ecology, 10(5), 1996, pp. 531-543

Abstract

Hybridogenetic species possess a hybrid genome: half is clonally inherited (hemiclonal reproduction) while the other half is obtained each generation by sexual reproduction with a parental species. We addressed the question of whether different hemiclones of the hybridogenetic water frog Rana esculenta are locally adapted for genetic compatibilitywith their sexual parental host Rana lessonae. We artificially crossed R. esculenta females of three hemiclones (GUT1, GUT2 and GUT3) from a pond near Gutighausen, Switzerland and one hemiclone (HEL1) from near Hellberg, Switzerland each to R. lessonae males from both populations. We also created primary hybrids by crossing the same R. lessonae males from both populations to R. ridibunda females from Poznan, Poland (POZ). Tadpoles were then reared in the laboratory at two food levels to assess their performance related to early larval growth rate, body size at metamorphosis and length of the larval period. Tadpoles from hemiclons GUT1, GUT3 and POZ had higher growth rates than those from hemiclones GUT2 and HEL1 at the low food level, but at the high food level all growth rates were higher and diverged significantly between hemiclones GUT2 and HEL1. Tadpoles from the intrapopulational crosses GUT2 x GUT and HEL1 x HEL were larger at metamorphosis than those from the interpopulational crosses GUT2 x HEL and HEL1 x GUT. A high food level increased the size at metamorphosis in all tadpoles. A high food level also decreased the days to metamorphosis and tadpoles from GUT1, GUT3 and POZ had the shortest larval period whereas those from GUT2 andHEL1 had the longest. These results indicate that the differential compatibility of clonal genomes may play an important role in hybridogenetic species successfully using locally adapted sexual genomes of parental species and that interclonal selection is likely important in determining the distribution of hemiclones among local populations.

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Documento generato il 29/10/20 alle ore 21:26:42