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Titolo:
MITOCHONDRIAL-DNA DIVERSITY AND MALE-STERILITY IN NATURAL-POPULATIONSOF DAUCUS-CAROTA SSP CAROTA
Autore:
RONFORT J; SAUMITOULAPRADE P; CUGUEN J; COUVET D;
Indirizzi:
CNRS,CTR ECOL FONCT & EVOLUT,DEPT POPULAT BIOL,1919 ROUTE MENDE,BP 5051 F-34033 MONTPELLIER FRANCE UNIV SCI & TECH LILLE FLANDRES ARTOIS,GENET & EVOLUT POPULAT VEGETALES LAB,CNRS,URA 1185 F-59655 VILLENEUVE DASCQ FRANCE UNIV PARIS 06,INST ECOL F-75252 PARIS FRANCE UNIV LILLE 1,INST AGR & ALIMENTAIRE LILLE,GENET & EVOLUT POPULAT VEGETALES LAB,CNRS,URA 1185 F-59655 VILLENEUVE DASCQ FRANCE
Titolo Testata:
Theoretical and Applied Genetics
fascicolo: 1, volume: 91, anno: 1995,
pagine: 150 - 159
SICI:
0040-5752(1995)91:1<150:MDAMIN>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Soggetto:
CYTOPLASMIC MALE-STERILITY; FRAGMENT-LENGTH-POLYMORPHISMS; PLANTAGO-LANCEOLATA L; THYMUS-VULGARIS L; GENOME DIVERSITY; GENES; NUCLEAR; DIFFERENTIATION; EQUILIBRIUM; VARIABILITY;
Keywords:
RFLP; MITOCHONDRIAL DNA DIVERSITY; NATURAL POPULATIONS; CYTOPLASMIC MALE STERILITY; DAUCUS CAROTA L;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
45
Recensione:
Indirizzi per estratti:
Citazione:
J. Ronfort et al., "MITOCHONDRIAL-DNA DIVERSITY AND MALE-STERILITY IN NATURAL-POPULATIONSOF DAUCUS-CAROTA SSP CAROTA", Theoretical and Applied Genetics, 91(1), 1995, pp. 150-159

Abstract

Mitochondrial variability was investigated in natural populations of wild carrot (Daucus carota ssp carota) in different regions: South of France, Greece, and various sites in the Mediterranean Basin and Asia. Total DNA was digested with two restriction endonucleases (EcoRV and HindIII) and probed with three mitochondrial DNA-specific genes (coxI,atp6, and coxII). Twenty-five different mitochondrial types were found in 80 analyzed individuals. Thirteen mitotypes were found among the 7 French populations studied. On average, 4.4 different mitotypes wereobserved per population, and these mitotypes were well-distributed among the populations. All of the mitochondrial types were specific to asingle region. However, the proportion of shared restriction fragments between 2 mitotypes from different regions was not particularly lower than that which occurred among mitotypes from a single region. On the basis of the sexual phenotype [male-sterile (MS) or hermaphrodite] of the plants studied in situ and that of their progeny, 2 mitotypes were found to be highly associated with male sterility. Eighty percent of the plants bearing these mitotypes were MS in situ, and all of theseplants produced more than 30% MS plants in their progeny. This association with male sterility was consistent in several populations, suggesting an association with a cytoplasmic male-sterility system. Moreover, these two mitotypes had very similar mitochondrial DNA restriction patterns and were well-differentiated from the other mitotypes observed in wild plants and also from those observed in the two CMS types already known in the cultivated carrot. This suggests that they correspond to a third cytoplasmic sterility.

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Documento generato il 01/10/20 alle ore 04:16:20