Karyomorphology of the genus Oxygraphis Bunge (Ranunculaceae)

›› 2000, Vol. 38 ›› Issue (4): 350-354.

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Karyomorphology of the genus Oxygraphis Bunge (Ranunculaceae)

YANG Qin-Er

Received:1900-01-01 Revised:1900-01-01 Online:2000-07-10
Contact: YANG Qin-Er

Abstract

Abstract:

Three species of the genus Oxygraphis Bunge (Ranunculaceae) were karyomorpholog-

ically studied. The interphase nuclei of complex chromocenter type, prophase chromosomes of inter-

stitial type and basic chromosome number of x = 8 were common to all the three species examined,

but the chromosomes of O. delavayi were markedly larger than those of O. glacialis and of O.

tenuifolia. The results support the viewpoints that Oxygraphis is a natural member of the subtribe

Ranunculinae Spach, tribe Ranunculeae DC. in the subfamily Ranunculoideae and that O. dela-

vayi might be the primitive species of this genus.

Key words: Chromosome, Oxygraphis Bunge

YANG Qin-Er. Karyomorphology of the genus Oxygraphis Bunge (Ranunculaceae)[J]. , 2000, 38(4): 350-354.

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Karyomorphology of the genus Oxygraphis Bunge (Ranunculaceae)

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