A Chromosomal Interchange in Maize Involving the Attachment to the Nucleolus

1934 ◽  
Vol 68 (717) ◽  
pp. 345-350 ◽  
Author(s):  
E. G. Anderson
Keyword(s):  
Chromosomal Interchange

scholarly journals A Chromosomal Interchange in Maize Giving Low Sterility

CYTOLOGIA ◽  
1961 ◽  
Vol 26 (1) ◽  
pp. 83-88 ◽  
Author(s):  
Susan Thomas
Keyword(s):  
Chromosomal Interchange

scholarly journals Gamma Ray Induced Chromosomal Interchange in Safflower (Carthamus tinctorius L.)

CYTOLOGIA ◽  
2011 ◽  
Vol 76 (3) ◽  
pp. 237-241 ◽  
Author(s):  
Preeti Srivastava ◽  
Girjesh Kumar
Keyword(s):  
Gamma Ray ◽  
Carthamus Tinctorius ◽  
Chromosomal Interchange

Chromosomal interchange inEleutherine plicata Herb

Genetica ◽  
1969 ◽  
Vol 40 (1) ◽  
pp. 417-420 ◽  
Author(s):  
Panuganti N. Rao
Keyword(s):  
Chromosomal Interchange

Identification of a barley chromosomal interchange using N-banding and in situ hybridization techniques

Genome ◽  
1992 ◽  
Vol 35 (3) ◽  
pp. 392-397 ◽  
Author(s):  
Jie Xu ◽  
K. J. Kasha
Keyword(s):  
In Situ Hybridization ◽  
Rapid Identification ◽  
Root Tip ◽  
Chromosome 4 ◽  
Chromosome Identification ◽  
Chromosomal Interchange ◽  
Mother Cells ◽  
Tip Cells ◽  
Root Tip Cells

The combination of N-banding and in situ hybridization was used to illustrate the rapid identification of the chromosomes involved in a newly formed chromosomal interchange (reciprocal translocation) in barley. The plant heterozygous for the interchange was derived from the backcross of 'Su Pie', a two-rowed Chinese winter barley cultivar (2n = 2x = 14), with pollen from a triploid interspecific F1 hybrid (2n = 3x = 21) obtained from the cross of 'Su Pie' × tetraploid Hordeum bulbosum accession GBC141 (2n = 4x = 28). Pollen mother cells of the interchanged plant exhibited one quadrivalent and five bivalents in 97.8% of cells. Partial sterility of florets was observed in spikes obtained from self-pollination and the plants morphologically resembled barley. Barley chromosomes were readily identified by N-banding from root-tip cells with one band missing from the short arm of one of the pair of chromosome 4. N-banding of metaphase I of meiosis revealed that chromosomes 1, 2, and 5 were not involved in the interchange. In situ hybridization with a rDNA probe showed that chromosomes 6 and 7 were paired as bivalents. In conclusion, chromosomes 3 and 4 are involved in the interchange with the breakpoint in the short arm of chromosome 4 between the two proximal N-bands. The use of chromosome-specific DNA probes for chromosome identification using in situ hybridization is proposed.Key words: barley, chromosomal interchange, N-banding, in situ hybridization, rDNA.

Sign in / Sign up

Export Citation Format

Share Document