%0 Journal Article
%T 濒危植物峨眉含笑染色体核型分析<br>A Karyotype Analysis on the Endangered Species Michelia wilsonii
%A 陈绪玲
%A 余道平
%A 方志强
%A 李小杰
%A 李策宏
%A 谢孔平
%J Botanical Research
%P 79-84
%@ 2168-5673
%D 2021
%I Hans Publishing
%R 10.12677/BR.2021.101012
%X <div style=\"text-align:justify;\">
	<span style=\"font-size:14px;line-height:1.5;\">以峨眉含笑(Michelia wilsonii Finet et Gagnep.)种子萌发后的根尖为实验材料，用DAPI染色法制作染色体标本分析其染色体核型。结果表明，峨眉含笑为二倍体，染色体数目38条，核型公式为2n = 38 = 32m + 4sm + 2st，核型不对称系数为56.3%，核型属Stebbins的2A型，在进化上处于原始的地位。本研究确定了峨眉含笑的核型及进化地位，为其开发利用和保护提供了细胞学资料。<br />
The root tips of Michelia wilsonii Finet et Gagnep. was used for experiment to analyze chromo-some karyotypes by DAPI staining method. The results show that Michelia wilsonii is diploid, there are 38 chromosomes, its karyotype formula is 2n = 38 = 32m + 4sm + 2st. The karyotype asymmetry coefficient is 56.3%, and the karyotype is Stebbins’s 2A, which is in a primordial po-sition in evolution. The study determined the karyotype and evolutionary status of Michelia wilsonii, and provided cytological data for its development, utilization and protection of the en-dangered species.</span> 
</div>
%K 峨眉含笑，染色体类型，核型分析<br>Michelia wilsonii
%K Chromosome Type
%K Karyotype Analysis
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=39975