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  • The lowest chromosome numbers known in Brassicaceae (n=4-6) can be found in endemic Australian cruciferous species closely related to the model species Arabidopsis thaliana. We aimed to reconstruct the modes of chromosome number reduction in the Australian taxa from a tentative Ancestral Crucifer Karyotype (ACK, n=8) by comparative chromosome painting (CCP). In three Australian cruciferous species, Stenopetalum nutans (2n=8), Arabidella eremigena (2n=10) and Ballantinia antipoda (2n=12), all 24 genomic blocks of the ACK were unexpectedly found in duplicates. These data suggest that all three species experienced a relatively recent whole-genome duplication followed by massive karyotype reshuffling and chromosome fusions. The unique associations of ancestral genomic blocks shared by the ACK and the Australian crucifers suggest that the reduced crucifer karyotypes (n=4-6) descended from the ACK (n=8) via a polyploid ancestor with yet unknown chromosome number.
  • The lowest chromosome numbers known in Brassicaceae (n=4-6) can be found in endemic Australian cruciferous species closely related to the model species Arabidopsis thaliana. We aimed to reconstruct the modes of chromosome number reduction in the Australian taxa from a tentative Ancestral Crucifer Karyotype (ACK, n=8) by comparative chromosome painting (CCP). In three Australian cruciferous species, Stenopetalum nutans (2n=8), Arabidella eremigena (2n=10) and Ballantinia antipoda (2n=12), all 24 genomic blocks of the ACK were unexpectedly found in duplicates. These data suggest that all three species experienced a relatively recent whole-genome duplication followed by massive karyotype reshuffling and chromosome fusions. The unique associations of ancestral genomic blocks shared by the ACK and the Australian crucifers suggest that the reduced crucifer karyotypes (n=4-6) descended from the ACK (n=8) via a polyploid ancestor with yet unknown chromosome number. (en)
Title
  • Unraveling the mesopolyploid history of Australian crucifers (Brassicaceae)
  • Unraveling the mesopolyploid history of Australian crucifers (Brassicaceae) (en)
skos:prefLabel
  • Unraveling the mesopolyploid history of Australian crucifers (Brassicaceae)
  • Unraveling the mesopolyploid history of Australian crucifers (Brassicaceae) (en)
skos:notation
  • RIV/00216224:14310/09:00028762!RIV10-MSM-14310___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(IAA601630902), Z(MSM0021622415)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 347672
http://linked.open...ai/riv/idVysledku
  • RIV/00216224:14310/09:00028762
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • polyploidy; Australian crucifers; comparative chromosome painting (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [EC05705549A8]
http://linked.open...v/mistoKonaniAkce
  • Boone
http://linked.open...i/riv/mistoVydani
  • Boone
http://linked.open...i/riv/nazevZdroje
  • 17th International Chromosome Conference
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Lysák, Martin
  • Mummenhoff, Klaus
  • Mandáková, Terezie
  • Joly, Simon
http://linked.open...vavai/riv/typAkce
http://linked.open...ain/vavai/riv/wos
  • 000269055300106
http://linked.open.../riv/zahajeniAkce
http://linked.open...n/vavai/riv/zamer
issn
  • 0967-3849
number of pages
http://purl.org/ne...btex#hasPublisher
  • Neuveden
http://localhost/t...ganizacniJednotka
  • 14310
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