2010•Hubei nongye kexueRequires access

Karyotype Analysis of Avena fatua L.var. Portugal

Zhang Qing-qin

Abstract

The karyotype of Avena fatua L.var.Portugal was analyzed.The results showed that the number of chromosomes was 42,of which the great majority were metacentric(m) or submetacentric(sm) chromosomes.Its chromosome length ratio was 3.190.Three pairs of satellites were found on the chromosomes 5,11 and 16 respectively.The karyotype formula of Avena fatua L.var.Portugal was 2n=6x=42=18m+22sm(6SAT)+2st,which belonged to 2B type.

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Key concepts: Avena fatua, Karyotype, Biology, Avena, Chromosome number, Chromosome, Botany, Genetics