The discovery of triploid Lycoris sprengeri Comes ex Baker from Anhui, China

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The discovery of triploid Lycoris sprengeri Comes ex Baker from Anhui, China

ZHANG Ding-Cheng, SUN Ye-Gen, ZHENG Yan, SHAO Jian-Zhang

Received:1900-01-01 Revised:1900-01-01 Online:1999-01-10 Published:1999-01-10
Contact: ZHANG Ding-Cheng

Abstract

Abstract:

Lycoris sprengeri Comes ex Baker is endemic to China. Reported in the present

paper are the chromosomes number and karyotypes for two wild populations of the species

from Anhui. ( 1 )Caishi population has a karyotype 2n=33=9st+21t+3T. The length of

chromosomes ranges from 5.58～9.15μm. The karyotype belongs to Stebbin’s (1971)

“4A”. (2)Longyashan populations have two karyotypes. The karyotype formula of the type

I is 2n=22=8st+14t, with chromosomes ranging from 6.88～9.15μm. The karyotype

belongs to “4A”. The karyotype formula of the type Ⅱ is 2n＝22＝1m+1sm+14st+6t,

with chromosomes ranging from 7.20～15.80μm. The karyotype belongs to “3B”. The

triploid type of L. sprengeri was discovered in Anhui for the first time. The karyotype 2n=22 =1m+1sm+14st+6t in diploid type of this species is here reported for the first time.

The Robertsonian change plays a key role in karyotype evolution of Lycoris.

Key words: Lycoris sprengeri Comes ex Baker, Triploid, Anhui

ZHANG Ding-Cheng, SUN Ye-Gen, ZHENG Yan, SHAO Jian-Zhang. The discovery of triploid Lycoris sprengeri Comes ex Baker from Anhui, China[J]. .

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The discovery of triploid Lycoris sprengeri Comes ex Baker from Anhui, China

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