PMID- 11007495
OWN - NLM
STAT- MEDLINE
DCOM- 20010202
LR  - 20190831
IS  - 0009-5915 (Print)
IS  - 0009-5915 (Linking)
VI  - 109
IP  - 5
DP  - 2000
TI  - Genetic induction of chromosomal rearrangements in barley chromosome 7H added to 
      common wheat.
PG  - 358-63
AB  - Chromosome 2C of Aegilops cylindrica induces chromosomal rearrangements in alien 
      chromosome addition lines, as well as in euploid lines, of common wheat. To 
      induce chromosomal rearrangements in barley chromosome 7H, reciprocal crosses 
      were made between a mutation-inducing common wheat line that carries a pair of 7H 
      chromosomes and one 2C chromosome and a 7H disomic addition line of common wheat. 
      Many shrivelled seeds were included in the progeny, which was an indication of 
      the occurrence of chromosome mutations. The chromosomal constitution of the 
      viable progeny was examined by FISH (fluorescence in situ hybridization) using 
      the barley subterminal repeat HvT01 as a probe. Structural changes of chromosome 
      7H were found in about 15% of the progeny of the reciprocal crosses. The aberrant 
      7H chromosomes were characterized by a combination of N-banding, FISH and genomic 
      in situ hybridization. Mosaicism for aberrant 7H chromosomes was observed in 
      seven plants. In total, 89 aberrant 7H chromosomes were identified in 82 plants, 
      seven of which had double aberrations. More than half of the plants carried a 
      simple deletion: four short-arm telosomes, one long-arm telosome, and 45 terminal 
      deletions (23 in the short arm, 21 in the long arm, and one involving both arms). 
      About 40% of the aberrations represented translocations between 7H and wheat 
      chromosomes. Twenty of the translocations had wheat centromeres, 12 the 7H 
      centromere, with translocation points in the 7HS (five) and in the 7HL (seven), 
      and the remaining four were of Robertsonian type, three involving 7HS and one 
      with 7HL. In addition, one translocation had a barley segment in an intercalary 
      position of a wheat chromosome, and two were dicentric. The breakpoints of these 
      aberrations were distributed along the entire length of chromosome 7H.
FAU - Shi, F
AU  - Shi F
AD  - Laboratory of Plant Genetics, Graduate School of Agriculture, Kyoto University, 
      Japan.
FAU - Endo, T R
AU  - Endo TR
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - Austria
TA  - Chromosoma
JT  - Chromosoma
JID - 2985138R
SB  - IM
MH  - *Chromosome Aberrations
MH  - Chromosome Banding
MH  - Crosses, Genetic
MH  - Genome, Plant
MH  - Hordeum/*genetics
MH  - In Situ Hybridization, Fluorescence
MH  - Mutagenesis
MH  - Triticum/*genetics
EDAT- 2000/09/28 11:00
MHDA- 2001/03/03 10:01
CRDT- 2000/09/28 11:00
PHST- 2000/09/28 11:00 [pubmed]
PHST- 2001/03/03 10:01 [medline]
PHST- 2000/09/28 11:00 [entrez]
AID - 10.1007/s004120000085 [doi]
PST - ppublish
SO  - Chromosoma. 2000;109(5):358-63. doi: 10.1007/s004120000085.