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2006•Journal of Yantai UniversityRequires access

Karyotype and Chromosome Variation in Genus Hemerocallis L.from Kunyu Mountain

Wang Jiansheng

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Abstract

The chromosome numbers and karyotypes of two species in Hemerocallis are studied.The results show that the karyotypes of metaphase chromosomes in somatic cells are as follows: for H.citrina,the number of chromosomes is 2n=2X=22=16m+4sm+2T,the AS.K% is 58.9%,the relative length of chromosome is 2n=2X=22=6L+10M1+6S,the total volume of chromosomes is 105.39 μm~3;for H.esculenta,they are 2n=2X=22=20m+2T,53.8%,2n=2X=22=4L+2M2+14M1+2S,and 99.43 μm~3,respectively.And the morphology of chromosomes is analysed by nested analysis.There is variation in the degree between individuals and between cells.Moreover,the variation in the population is mainly from the variation between individuals.

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The chromosome numbers and karyotypes of two species in Hemerocallis are studied.The results show that the karyotypes of metaphase chromosomes in somatic cells are as follows: for H.citrina,the number of chromosomes is 2n=2X=22=16m+4sm+2T,the AS.K% is 58.9%,the relative length of chromosome is 2n=2X=22=6L+10M1+6S,the total volume of chromosomes is 105.39 μm~3;for H.esculenta,they are 2n=2X=22=20m+2T,53.8%,2n=2X=22=4L+2M2+14M1+2S,and 99.43 μm~3,respectively.And the morphology of chromosomes is analysed by nested analysis.There is variation in the degree between individuals and between cells.Moreover,the variation in the population is mainly from the variation between individuals.

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Available abstract

The chromosome numbers and karyotypes of two species in Hemerocallis are studied.The results show that the karyotypes of metaphase chromosomes in somatic cells are as follows: for H.citrina,the number of chromosomes is 2n=2X=22=16m+4sm+2T,the AS.K% is 58.9%,the relative length of chromosome is 2n=2X=22=6L+10M1+6S,the total volume of chromosomes is 105.39 μm~3;for H.esculenta,they are 2n=2X=22=20m+2T,53.8%,2n=2X=22=4L+2M2+14M1+2S,and 99.43 μm~3,respectively.And the morphology of chromosomes is analysed by nested analysis.There is variation in the degree between individuals and between cells.Moreover,the variation in the population is mainly from the variation between individuals.

Key concepts: Karyotype, Biology, Chromosome, Ploidy, Metaphase, Somatic cell, Genus, Chromosome number

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