PMID- 23819574
OWN - NLM
STAT- MEDLINE
DCOM- 20140613
LR  - 20220129
IS  - 1471-2148 (Electronic)
IS  - 1471-2148 (Linking)
VI  - 13
DP  - 2013 Jul 3
TI  - Chromosomal diversification and karyotype evolution of diploids in the 
      cytologically diverse genus Prospero (Hyacinthaceae).
PG  - 136
LID - 10.1186/1471-2148-13-136 [doi]
AB  - BACKGROUND: Prospero (Hyacinthaceae) provides a unique system to assess the 
      impact of genome rearrangements on plant diversification and evolution. The genus 
      exhibits remarkable chromosomal variation but very little morphological 
      differentiation. Basic numbers of x = 4, 5, 6 and 7, extensive polyploidy, and 
      numerous polymorphic chromosome variants were described, but only three species 
      are commonly recognized: P. obtusifolium, P. hanburyi, and P. autumnale s.l., the 
      latter comprising four diploid cytotypes. The relationship between evolutionary 
      patterns and chromosomal variation in diploids, the basic modules of the 
      extensive cytological diversity, is presented. RESULTS: Evolutionary inferences 
      were derived from fluorescence in situ hybridization (FISH) with 5S and 35S rDNA, 
      genome size estimations, and phylogenetic analyses of internal transcribed spacer 
      (ITS) of 35S rDNA of 49 diploids in the three species and all cytotypes of P. 
      autumnale s.l. All species and cytotypes possess a single 35S rDNA locus, 
      interstitial except in P. hanburyi where it is sub-terminal, and one or two 5S 
      rDNA loci (occasionally a third in P. obtusifolium) at fixed locations. The 
      localization of the two rDNA types is unique for each species and cytotype. 
      Phylogenetic data in the P. autumnale complex enable tracing of the evolution of 
      rDNA loci, genome size, and direction of chromosomal fusions: mixed descending 
      dysploidy of x = 7 to x = 6 and independently to x = 5, rather than successive 
      descending dysploidy, is proposed. CONCLUSIONS: All diploid cytotypes are 
      recovered as well-defined evolutionary lineages. The cytogenetic and phylogenetic 
      approaches have provided excellent phylogenetic markers to infer the direction of 
      chromosomal change in Prospero. Evolution in Prospero, especially in the P. 
      autumnale complex, has been driven by differentiation of an ancestral karyotype 
      largely unaccompanied by morphological change. These new results provide a 
      framework for detailed analyses of various types of chromosomal rearrangements 
      and karyotypic variation in polyploids.
FAU - Jang, Tae-Soo
AU  - Jang TS
AD  - Department of Systematic and Evolutionary Botany, University of Vienna, Rennweg 
      14, A-1030, Vienna, Austria.
FAU - Emadzade, Khatere
AU  - Emadzade K
FAU - Parker, John
AU  - Parker J
FAU - Temsch, Eva M
AU  - Temsch EM
FAU - Leitch, Andrew R
AU  - Leitch AR
FAU - Speta, Franz
AU  - Speta F
FAU - Weiss-Schneeweiss, Hanna
AU  - Weiss-Schneeweiss H
LA  - eng
SI  - GENBANK/KC899267
SI  - GENBANK/KC899268
SI  - GENBANK/KC899269
SI  - GENBANK/KC899270
SI  - GENBANK/KC899271
SI  - GENBANK/KC899272
SI  - GENBANK/KC899273
SI  - GENBANK/KC899274
SI  - GENBANK/KC899275
SI  - GENBANK/KC899276
SI  - GENBANK/KC899277
SI  - GENBANK/KC899278
SI  - GENBANK/KC899279
SI  - GENBANK/KC899280
SI  - GENBANK/KC899281
SI  - GENBANK/KC899282
SI  - GENBANK/KC899283
SI  - GENBANK/KC899284
SI  - GENBANK/KC899285
SI  - GENBANK/KC899286
SI  - GENBANK/KC899287
SI  - GENBANK/KC899288
SI  - GENBANK/KC899289
SI  - GENBANK/KC899290
SI  - GENBANK/KC899291
SI  - GENBANK/KC899292
SI  - GENBANK/KC899293
SI  - GENBANK/KC899294
SI  - GENBANK/KC899295
SI  - GENBANK/KC899296
SI  - GENBANK/KC899297
SI  - GENBANK/KC899298
SI  - GENBANK/KC899299
SI  - GENBANK/KC899300
SI  - GENBANK/KC899301
SI  - GENBANK/KC899302
SI  - GENBANK/KC899303
SI  - GENBANK/KC899304
SI  - GENBANK/KC899305
SI  - GENBANK/KC899306
SI  - GENBANK/KC899307
SI  - GENBANK/KC899308
SI  - GENBANK/KC899309
SI  - GENBANK/KC899310
SI  - GENBANK/KC899311
SI  - GENBANK/KC899312
SI  - GENBANK/KC899313
SI  - GENBANK/KC899314
SI  - GENBANK/KC899315
SI  - GENBANK/KC899316
SI  - GENBANK/KC899317
GR  - P 21440/FWF_/Austrian Science Fund FWF/Austria
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20130703
PL  - England
TA  - BMC Evol Biol
JT  - BMC evolutionary biology
JID - 100966975
RN  - 0 (DNA, Ribosomal)
SB  - IM
MH  - Base Sequence
MH  - Chromosomes, Plant/*genetics
MH  - DNA, Ribosomal/genetics
MH  - *Diploidy
MH  - *Evolution, Molecular
MH  - Genetic Variation
MH  - Karyotype
MH  - Liliaceae/classification/*genetics
MH  - Molecular Sequence Data
MH  - Phylogeny
PMC - PMC3728210
EDAT- 2013/07/04 06:00
MHDA- 2014/06/15 06:00
PMCR- 2013/07/03
CRDT- 2013/07/04 06:00
PHST- 2013/04/03 00:00 [received]
PHST- 2013/06/27 00:00 [accepted]
PHST- 2013/07/04 06:00 [entrez]
PHST- 2013/07/04 06:00 [pubmed]
PHST- 2014/06/15 06:00 [medline]
PHST- 2013/07/03 00:00 [pmc-release]
AID - 1471-2148-13-136 [pii]
AID - 10.1186/1471-2148-13-136 [doi]
PST - epublish
SO  - BMC Evol Biol. 2013 Jul 3;13:136. doi: 10.1186/1471-2148-13-136.