New CMS-associated phenotypes in cybrids Nicotiana tabacum L. (+Hyoscyamus niger L.)

  1. Lookup NU author(s)
  2. Dr Mikhajlo Zubko
Author(s)Zubko MK; Zubko EI; Adler K; Grimm B; Gleba YY
Publication type Article
JournalAnnals of Botany
Year2003
Volume92
Issue2
Pages281-288
ISSN (print)0305-7364
ISSN (electronic)1095-8290
Full text for this publication is not currently held within this repository. Alternative links are provided below where available.
Morphological characteristics were studied in cytoplasmic male sterile (CMS) cybrids possessing the tobacco nuclear genome, Hyoscyamus niger plastome and recombinant mitochondria. After backcrosses with tobacco, new flower modifications were found, including: conversions of stamens into branched filamentous structures; alterations in the shape of petals and the corolla limb; and high degrees of reduction in most flower organs. Vegetative alterations (leaf elongation and stem branching) occurred in some cybrids. Results confirmed that a protoplast fusion-based alloplasmic cytoplasm transfer, followed by conventional backcrosses, is a useful tool for generating alternative CMS sources with novel nucleo-cytoplasmic compositions. These alterations in the genetic status were accompanied by modified floral and vegetative phenotypes.
PublisherOxford University Press
URLhttp://aob.oxfordjournals.org/content/92/2/281.full.pdf
Notes
Actions    Link to this publication
Share