x
uploads/powder chamber.jpg

powder chamber (炮彈里的)藥室。

powder down

Two hundred and seventy - four sites were detected by 15 10 - mer primers , out of which 262 were polymorphic ( 95 . 6 % of the total loci detected ) . all of the materials were clearly distinguished , of which fourteen samples have forty - five typical rapd bands . before the molecular taxonomy was introduced , people never doubted subgenus yulania ' s disrelation with subgenus magnolia and a close relation between subgenus yulania and michelia , as there is in both genera a sameness seen in their prolepsis and powder chambers dehiscing on the side 3 、通過對玉蘭亞屬rapd擴增譜帶的分析,發現該類群具有很高的多態性:多態位點百分率高達95 . 6 ,產生的多態性帶數與所用引物數的比例為17 . 6 , 15條隨機引物清楚地分開了31個種類,其中的14個種共有45條特征性帶,在利用rapd標記已研究過的類群中,本類群多態性較高。