{# load django_bootstrap5#%} CCDB server
Prof. Itay Mayrose Lab - Plant Evolution, bioinformatics, & comparative genomics


   CCDB is a community resource. If you are aware of any missing data or if any of the counts are erroneous please submit it to the forms submit new counts, or report erroneous counts.


CCDBAngiospermsCompositaeSilphiumSilphium perfoliatum L.

16 chromosome counts in Silphium perfoliatum L.:


Name Accepted Name Gametophytic(n) Sporophytic(2n) Data Source reference
  Silphium perfoliatum L. Silphium perfoliatum L. 7(1)   Asteracea Xiong et al. 1993 J. Wuhan Bot. Res. (= Plant Science Journal)
  Silphium perfoliatum L. Silphium perfoliatum L. 7II   IPCN online Freeman, C. C. & R. E. Brooks. 1988. Documented plant chromosome numbers 1988: 1. Chromosome counts for North American plants -- I. Sida 13: 241–250.
  Silphium perfoliatum L. Silphium perfoliatum L.   14 IPCN online Xiong, Z. t. 1989. Karyotype and random arrangement of homologues in mitotic metaphase of Silphium perfoliatum L. Hereditas (Beijing) 11: 5–8.
  Silphium perfoliatum L. Silphium perfoliatum L.   14 IPCN online POPOVA, M., S. Doicheva & D. Sakalieva. 1983. Kariologichna kharakteristika na Silphium perfoliatum L. Nauchni Trudove Vissh Selskost. Inst. "Vasil Kolarov" 28(4): 45–49.
  Silphium perfoliatum L. Silphium perfoliatum L.   14 IPCN online Zhang, L., C. e. Lu & W. e. Zhao. 1986. Nuclear type analysis of Silphium perfoliatum. Grassl. China 4: 42–43.
  Silphium perfoliatum L. Silphium perfoliatum L. 7   IPCN online Xiong, Z. t., C. y. Liu, R. h. Huang & X. w. Wu. 1990. Pollen mother cell meiosis and pollen development in Silphium perfoliatum L. with observations on some abnormal pollen grains. J. Wuhan Bot. Res. 8: 297–300.
  Silphium perfoliatum L. Silphium perfoliatum L.   14 IPCN online Du, B. q., Q. h. Liu & C. y. Zhu. 1990. Studies on the karyotype of Silphium perfoliatum. J. Wuhan Bot. Res. 8: 189–190.
  Silphium perfoliatum L. Silphium perfoliatum L.   14 IPCN online Xu, H. y., M. y. Chang & L. c. Tian. 1992. Studies on the karyotypes of 8 species in Silphium. Chin. Bull. Bot. 9(3): 47–49.
  Silphium perfoliatum L. Silphium perfoliatum L.   14 IPCN online Xiong, Z. t., X. q. Chen & P. Yuan. 1993. Studies on Giemsa C-bands and chromocenters of Silphium perfoliatum. J. Wuhan Bot. Res. 11: 1–4.
  Silphium perfoliatum L. Silphium perfoliatum L. 7   IPCN67-71 JONES, S.B., JR. 1970. Chromosome numbers in Compositae. Bull. Torrey Bot. Club. 97: 168-174.
  Silphium perfoliatum L. Silphium perfoliatum L.   14 IPCN67-71 SETTLE, w. J. 1967. The chromosome morphology in the genus Silphium (Compositae). Ohio Jour. Sci. 67: 10-19.
  Silphium perfoliatum var. perfoliatum Silphium perfoliatum L.   14 eFlora  
  Silphium perfoliatum L. Silphium perfoliatum L.   14 Fedorov, 1974 Taylor W. R. 1926
  Silphium perfoliatum L. Silphium perfoliatum L.   14 Fedorov, 1974 Fisher T. R.. Cruden 1962 .
  Silphium perfoliatum L. Silphium perfoliatum L.   16 Fedorov, 1974 Merrell 1900
!   Silphium perfoliatum L. Silphium perfoliatum L. 7 14 Cave1962 Fisher & Cruden 1962