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- W1997658521 startingPage "141" @default.
- W1997658521 abstract "Chromosome numbers and meiotic behaviour of 10 native species of Hybanthus in South America were analyzed. 3 different chromosome numbers were found: 2n=16 for Hybanthus atropurpureus (A. St.-Hil.) Taub., H. bigibbosus (A. St.-Hil.) Hassl. and H. paraguariensis (Chodat) Schulze-Menz, 2n=32 for H. bicolor (A. St.-Hil.) Baill., H. calceolaria (L.) Oken, H. communis (A. St.-Hil.) Taub., H. hasslerianus (Chodat) Hassl., H. leucopogon Sparre and H. nanus (A. St.-Hil.) Paula-Souza, and 2n=48 for H. longistylus Schulze-Menz. This is one of the first reports for 8 analyzed species. Nowadays, the basic chromosome numbers in the South American Hybanthus species are under discussion. The presence of 1 tetravalent in H. atropurpureus, H. bigibbosus and H. paraguariensis (2n=16) would suggest the duplication of chromosome sets, and therefore would indicate that the basic chromosome number is x=4, at least, for this group of South American Hybanthus species. The studied species would be tetraploids (2n=4x=16), octoploids (2n=8x=32) and dodecaploids in H. longistylus (2n=12x=48). In light of these findings, such polyploidy would likely have played an important role during the speciation of this heterogenerous generic assembly." @default.
- W1997658521 created "2016-06-24" @default.
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- W1997658521 date "2009-01-01" @default.
- W1997658521 modified "2023-10-16" @default.
- W1997658521 title "Meiotic Studies in Ten Species of Hybanthus Jacq. (Violaceae) from South America" @default.
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- W1997658521 doi "https://doi.org/10.1508/cytologia.74.141" @default.
- W1997658521 hasPublicationYear "2009" @default.
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