La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Karyotypes of Sarcandra Gardn. and Chloranthus Swartz (Chloranthaceae) from China
Auteurs :	Hong-Zhi Kong, Auteur
Type de document :	Article
Dans :	Botanical Journal of the Linnean Society (133(3) 2000-07-01)
Article en page(s) :	327-342
Résumé :	Two species of Sarcandra and nine of Chloranthus in the Chloranthaceae from China were investigated cytologically. The basic chromosome number of both genera is x=15. In Sarandra the two species studied are diploid, and in Chloranthus seven species are diploid, one tetraploid (C. fortunei;, 2n = 60) and one hexaploid (C. henryi, 2n = 90). Chromosomes are medium-small to small, ranging in length from c. 6.0 εm to 1.0 εm. The katyotype formulas are as follow: S. glabra 2n= 10m+ 10sm + 8st + 2st; satS. hainanensis 2n = 8m+ 12sm + 8st+2stsat; C. spicatus 2n=12m+8sm + 6st + 4stsat; C. erectus 2n= 12m + 4sm+ 12st + 2stsat; C. serratus 2n=16m + 12sm + 2stsat; C. sessilifolius 2n= 14m + 8sm + 6st+2stsat; C. nervosus 2n = 8m + 4sm + 6st + 2stsat; C. angustfolius 2n = 20m + 6sm + 2smsat+ 2stsat; C. japonicus 2n = 18m + 8sm + 4stsat; C. fortunei 2n=48m+4sm + 4st + 4stsat. Karyotype asymmetries are of type 3B in C. erectus and C. nervosus and 2B in the other species. Based on these results, combined with the evidence from comparative morphology, anatomy, palynology and embryology, the relationship between Sarcandra and Chloranthus is discussed.
En ligne :	https://doi.org/10.1111/j.1095-8339.2000.tb01549.x

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