Chromosome association and basic number in Anredera krapovickasii (Basellaceae)

The chromosome number of Anredera krapovickasii (Villa Carenzo) Sperling is given (2n=24) and karyotype is reported for the first time: 18 m + 2 m-sm + 4 sm. Meiotic studies reveal chromosome associations with secondarily associated bivalents. The analysis of chromosome pairing suggests a basic numb...

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Autores principales: Argimón, S., Wulff, A.F., Xifreda, C.C.
Formato: JOUR
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Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00087114_v52_n3-4_p203_Argimon
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Sumario:The chromosome number of Anredera krapovickasii (Villa Carenzo) Sperling is given (2n=24) and karyotype is reported for the first time: 18 m + 2 m-sm + 4 sm. Meiotic studies reveal chromosome associations with secondarily associated bivalents. The analysis of chromosome pairing suggests a basic number x=6 for the species, and in consequence for the genus and the Basellaceae family. Basic chromosome number also indicates a closer relationship between Basellaceae and Portulacaceae. © 1999 Taylor & Francis Group, LLC.