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Structure and genetic organization of the polyploid macronucleus of ciliates: a comparative review

100%

Raikov I. B.

Acta Protozoologica

1995

tom 34

nr 3

Nuclear extrachromosomal DNA of higher plants

100%

Buchowicz J.

Acta Biochimica Polonica

1997

tom 44

nr 1

Recent reports indicate that mini chromosomes and other small genetic entities may occur in the nuclei of uninfected higher plants. They become especially abundant under some special growth conditions and, sometimes, resemble extrachromosomal genes of ciliated protozoa. An example of such a gene-sized DNA species was isolated from resting wheat embryos. Hie presence of telo- meric sequences at its termini and the ability to replicate autonomously in wheat nuclei made it possible to distinguish this nuclear mini chromosome from chromosomal DNA fragmentation products. The biological significance of plant mini chromosomes remains to be elucidated.

Ograniczanie wyników

1 Acta Biochimica Polonica

1 Acta Protozoologica

1 Buchowicz J.

1 Raikov I. B.

1 1997

1 1995

Wyniki wyszukiwania

Structure and genetic organization of the polyploid macronucleus of ciliates: a comparative review

Nuclear extrachromosomal DNA of higher plants