摘要
对旋花科三种植物的染色体进行了研究，结果显示：藤长苗（Ｃａｌｙｓｔｅｇｉａｐｅｌｉｔａ（Ｌｅｄｅｂ．）Ｇ．Ｄｏｎ）染色体数目为２ｎ＝２０，核型公式Ｋ（２ｎ）＝２０＝２Ｍ＋１６ｍ＋２ｓｍ，核型“１Ｂ”型；打碗花（ＣａｌｙｓｔｅｇｉａｈｅｄｅｒａｃｅａＷａｌ．）的染色体数目为２ｎ＝２０，核型公式Ｋ（２ｎ）＝２０＝２Ｍ＋１６ｍ＋２ｍ（ｓａｔ），核型“１Ａ”型；田旋花（ＣｏｎｖｏｌｖｕｌｕｓａｒｖｅｎｓｉｓＬ．）的染色体数目为２ｎ＝７８．
The number and karyotype of chromosomes of three species of Convolvulaceae were studied.The results showed:the chromosome number of Calystegia pellita (Ledeb.,G.Don) is 2n=20 and its karyotype formula is K(2n) =20=2M+16m+2sm,and it also showed that this plant belongs to type “1B”of Stebbins’ karyotype asymmetry.The chromosome number of Calystegia hederacea Wall.is 2n=20 and its karyotype formula is K(2n) =20=2M+16m+2m(SAT).This plant belongs to type “1A”.The chromosome number of Convolvulus arvensis L.is 2n=78 ,but its karyotype was not studied.
出处
《山东师范大学学报（自然科学版）》
CAS
1998年第4期428-430,共3页
Journal of Shandong Normal University(Natural Science)
基金
山东省科委基金
关键词
藤长苗
打碗花
田旋花
染色体数目
核型
旋花科
calystegia pellita
calystegia hederacea
convolvulus arvensis
chromosome number
karyotype
