ANALYSIS OF EVOLUTIONARY RELATIONSHIP BETWEEN ASTASIA LONGA AND EUGLENA GRACILIS BY USING RAPD TECHNIQUE AND CLADISTIC ANALYSIS   总被引：1，自引：0，他引：1  

王江新  施之新  甘小妮  谢树莲 《中国海洋湖沼学报》2001,(1)

ＩＮＴＲＯＤＵＣＴＩＯＮＡｓｔａｓｉａａｎｄＥｕｇｌｅｎａ,ｂｏｔｈｂｅｌｏｎｇｉｎｇｔｏＥｕｇｌｅｎａｐｈｙｔａ,ｗｅｒｅｆｉｒｓｔｃｌａｓｓｉｆｉｅｄｂｙＫｌｅｂｓ(1883)ｉｎｔｏｄｉｆｆｅｒｅｎｔｆａｍｉｌｉｅｓａｃｃｏｒｄｉｎｇｔｏｔｈｅｉｒｍｏｄｅｏｆｎｕｔｒｉｔｉｏｎ(ＡｓｔａｓｉａｉｓｓａｐｒｏｐｈｙｔｉｃａｎｄＥｕｇｌｅｎａｉｓｐｈｏｔｏｔｒｏｐｈｉｃ).Ｂｕｔｗｉｔｈｄｅｅｐｅｒｒｅｓｅａｒｃｈｅｓｏｎｉｔｓｍｏｒｐｈｏｃｙｔｏｌｏｇｙ,Ａｓｔａｓｉａｗａｓｆｏｕｎｄｔｏｂｅｖｅｒｙｓ…  相似文献   

ANALYSIS OF EVOLUFIONARY RELATIONSHIP BETWEEN ASTASIA LONGA AND EUGLENA GRACILIS BY USING RAPD TECHNIQUE AND CLADISTIC ANALYSIS     

王江新施之新  甘小妮谢树莲 《中国海洋湖沼学报》2001,19(1):40-50

Although both Astasia longa and Euglena gracdlis belong to different genera, they share many morphological characters except that A. longa has no chloroplast. In the 1940‘ s, on the basis of the finding that in darkness or upon addition of scrne chemicals, E. gmcilis would fade reversibly or irreversibly, scrne scholars hypothesised that A. longa evolved from E. gracilis by losing chloroplast.The authors‘ use of RAPD and cladistic analyses in a study on the evolutionary relationship between A .longa and E. gmcilis showed that the A. longa ‘ s relationship with E. gmcilis was closer than that with other green euglenoids. This proves the hypothesis that A. longa evolved from E. gmcills is reasonable. The results d this study suggest that saprophytic colorless euglenoids were transformed fromgreen euglenoids by losing their choroplasts.  相似文献   

山西运城盐池湖区浮游绿藻及其分布特点   总被引：3，自引：1，他引：2  

谢树莲  凌元洁  李砧  王江新 《湖泊科学》2000,12(2):189-192

在山西运城盐池湖区采用的浮游绿藻共３３属８０种（含变种）,其中团藻目５属７种,四孢藻目３属３种,绿球藻目２０属５１种,鼓藻目５属１９种。该区域的水体根据其含盐量的不同可分为４种类型：淡水水体（含盐量０．０１１％－０．０５％）、混盐水体（含盐量０．０５％￣３％）,真盐水体（含盐量３％￣４％）和高盐水体（含盐量４％￣３４．７％）,由于受含盐量的影响,浮游绿藻在４种水体中的分布有明显差异,总的趋势是含盐  相似文献