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Article

Karyotype diversification and evolution in diploid and polyploid South American Hypochaeris (Asteraceae) inferred from rDNA localization and genetic fingerprint data.

Annals of botany - 1 May 2008

Weiss-Schneeweiss Hanna, Tremetsberger Karin, Schneeweiss Gerald M, Parker John S, Stuessy Tod F

Abstract excerpt

BACKGROUND AND AIMS: Changes in chromosome structure and number play an important role in plant evolution. A system well-suited to studying different modes of chromosome evolution is the genus Hypochaeris (Asteraceae) with its centre of species' diversity in South America. All South American species uniformly have a chromosome base number of x = 4 combined with variation in rDNA number and distribution, and a...

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Identifiers

PMID: 18285356
DOI: 10.1093/aob/mcn023
PMCID: PMC2710225

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