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Titolo:
THE ORIGIN AND EVOLUTION OF WEED BEETS - CONSEQUENCES FOR THE BREEDING AND RELEASE OF HERBICIDE-RESISTANT TRANSGENIC SUGAR-BEETS
Autore:
BOUDRY P; MORCHEN M; SAUMITOULAPRADE P; VERNET P; VANDIJK H;
Indirizzi:
UNIV LILLE 1,GENET & EVOLUT POPULAT VEGETALES,CNRS,URA 1185 F-59655 VILLENEUVE DASCQ FRANCE
Titolo Testata:
Theoretical and Applied Genetics
fascicolo: 4, volume: 87, anno: 1993,
pagine: 471 - 478
SICI:
0040-5752(1993)87:4<471:TOAEOW>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
BETA-VULGARIS L; HYBRIDIZATION; GENOMES; PLANTS; GENE; DNA;
Keywords:
LIFE CYCLE VARIABILITY; CYTOPLASMIC DNA MARKERS; BETA-VULGARIS L; WEEDS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
40
Recensione:
Indirizzi per estratti:
Citazione:
P. Boudry et al., "THE ORIGIN AND EVOLUTION OF WEED BEETS - CONSEQUENCES FOR THE BREEDING AND RELEASE OF HERBICIDE-RESISTANT TRANSGENIC SUGAR-BEETS", Theoretical and Applied Genetics, 87(4), 1993, pp. 471-478

Abstract

Populations of weed beets have expanded into European sugar beet production areas since the 1970s, thereby forming a serious new weed problem for this crop. We sampled seeds in different French populations andstudied mitochondrial DNA, chloroplast DNA and life-cycle variability. Given the maternal inheritance of the mitochondrial and chloroplastic genomes and the nuclear determinism of the annual habit, we were able to determine the maternal origin and evolution of these weed beet populations. Our study shows that they carry the dominant allele ''B'' for annual habit at high frequency. The main cytoplasmic DNA type foundin northern weed beet populations is the cytoplasmic male-sterile type characteristic of sugar beets. We were able to determine that these populations arise from seeds originating from the accidental pollinations of cultivated beets by adventitious beets in the seed production area, which have been transported to the regions where sugar beets are cultivated. These seeds are supposedly the origin of the weed forms and a frequently disturbed cultivated environment has selected for annual habit and early flowering genotypes. We discuss the consequences of the weed beet populations for the breeding, seed production and release of herbicide-resistant transgenic sugar beets.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/09/20 alle ore 13:40:53