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Titolo:
Microsatellite and RAPD polymorphisms in Ontario corn hybrids are related to the commercial sources and maturity ratings
Autore:
Sun, GL; William, M; Liu, J; Kasha, KJ; Pauls, KP;
Indirizzi:
Univ Guelph, Dept Plant Agr, Div Biotechnol, Guelph, ON N1G 2W1, Canada Univ Guelph Guelph ON Canada N1G 2W1 otechnol, Guelph, ON N1G 2W1, Canada
Titolo Testata:
MOLECULAR BREEDING
fascicolo: 1, volume: 7, anno: 2001,
pagine: 13 - 24
SICI:
1380-3743(200101)7:1<13:MARPIO>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
QUANTITATIVE TRAIT LOCI; FRAGMENT-LENGTH-POLYMORPHISMS; SEQUENCE REPEATS SSRS; GENETIC DIVERSITY; PLANT HEIGHT; INBRED LINES; MOLECULAR MARKERS; DNA POLYMORPHISMS; MAIZE GERMPLASM; RFLP;
Keywords:
genetic diversity; corn hybrids; microsatellite; RAPD; maturity rating; cluster analysis;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
51
Recensione:
Indirizzi per estratti:
Indirizzo: Pauls, KP Univ Guelph, Dept Plant Agr, Div Biotechnol, Guelph, ON N1G 2W1,Canada Univ Guelph Guelph ON Canada N1G 2W1 Guelph, ON N1G 2W1, Canada
Citazione:
G.L. Sun et al., "Microsatellite and RAPD polymorphisms in Ontario corn hybrids are related to the commercial sources and maturity ratings", MOL BREED, 7(1), 2001, pp. 13-24

Abstract

Random-amplified polymorphic DNA (RAPD) and microsatellite markers were used to estimate the genetic relationships among 37 Ontario corn hybrids. Almost all (95%) of the 160 RAPD fragments and all of the 79 microsatellite alleles were polymorphic across the 37 hybrids. Similarity values among the hybrids ranged from 31% to 86% when based on the RAPD data. The similaritiesbased on microsatellite markers ranged from 12% to 77%. The genetic diversity revealed by microsatellite marker analysis was higher than that obtained fro RAPD analysis. The similarity matrices for the microsatellite data and the RAPD data were moderately correlated (0.43). Cluster analyses based on either type of marker showed that most oaf the hybrids from the same company were closely related to each other. Both dendrograms clustered similar pairs or groups of hybrids. A principal component analysis, based on the combined RAPD and microsatellite data, yielded a good separation of the hybrids with Ontario Corn Heat Unit (OCHU) values <2800 from those with OCHU values >2800. Seventeen RAPD markers and 5 microsatellite markers were significantly associated with the OCHU ratings of the hybrids.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/01/20 alle ore 18:58:10