A KARYOTYPIC STUDY ON THREE SPECIES IN ABIES (PINACEAE) FROM EAST ASIA

Abstract

Abstract: The present paper deals with the karyotype analysis of three species in the Abies (Pinaceae) from East Asia including A. georgei Orr var.smithii (Viguie et Gaussen) Cheng et L. K. Fu, A.nephrolepis(Trautv.) Maxim. and A.holophylla Maxim. The karyotype fmulas of the spe- cies are K(2n) = 24= 18m(2SC)+6sm, 18m(6SC)+6sm and 14m(6SC)+10sm respectively. Their chromosome complements are 2n = 24 = 4L+8M2+10Ml+2S, 4L+8M2+8Ml+4S and 2L+12M2+8Ml+2S according to the standard defined by Kuo et al (l972) based on relative length. They belong to 2A type of Stebbins' karyotypic asymmetry. The karyotypes of the species are reported for the first time. The karyotype of A. nephrolepis is more symmetry and more primi-tive than that of A.georgei var.smithii and A.holoPhylla.

Key words: Karyotype

Li Linchu, Xu Asheng, Wang Gang. A KARYOTYPIC STUDY ON THREE SPECIES IN ABIES (PINACEAE) FROM EAST ASIA[J]. Plant Diversity, 1997, 19(03): 1-3.

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A KARYOTYPIC STUDY ON THREE SPECIES IN ABIES (PINACEAE) FROM EAST ASIA

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