Alien chromosome substitution of durum wheat: Substitution of the chromosome e7 of Elytrigia elongata for chromosome 4A of Stewart durum.

Chromosome Engineering of Durum Wheat with Alien Chromatin of Diploid Wheatgrass

Substitution of rye chromosome 5r for chromosome 5b of wheat and its effect on chromosome pairing.

HEXAPLOID wheat normally exhibits homologous pairing, forming only bivalents at meiosis. However, in the absence of chromosome 5B, homoeologous as well as homologous pairing occurs ( SEARS and OKAMOTO 1958; RILEY and CHAPMAN 1958; RILEY and KEMPANNA 1963). In 5Bdeficient hybrids between wheat and related genera, the level of chromosome pairing is increaesd (RILEY, CHAPMAN and KIMBER 1959). In w...

Fusarium Head Blight Reaction of Langdon Durum-Triticum dicoccoides Chromosome Substitution Lines

since the early 1980s (McMullen et al., 1997; Wilcoxson et al., 1988; Windels, 2000). Fusarium head blight (FHB), caused by Fusarium graminearum Management practices such as crop rotation have Schwabe, is a serious disease problem on durum wheat (Triticum been ineffective in limiting the disease. Most researchers turgidum L. var. durum ) in the USA. To date, the resistance to FHB available in h...

Molecular characterization and chromosome-specific TRAP-marker development for Langdon durum D-genome disomic substitution lines.

The aneuploid stocks of durum wheat (Triticum turgidum L. subsp. durum (Desf.) Husnot) and common wheat (T. aestivum L.) have been developed mainly in 'Langdon' (LDN) and 'Chinese Spring' (CS) cultivars, respectively. The LDN-CS D-genome chromosome disomic substitution (LDN-DS) lines, where a pair of CS D-genome chromosomes substitute for a corresponding homoeologous A- or B-genome chromosome p...

Characterization of wheatgrass-derived barley yellow dwarf virus resistance in a wheat alien chromosome substitution line.

ABSTRACT Wheatgrass (Thinopyrum intermedium) possesses a high level of resistance to barley yellow dwarf virus (BYDV) subgroup I and subgroup II strains. A wheat line (P29), in which the 7D chromosome has been substituted with a group 7 chromosome from T. intermedium, was examined for the level of resistance to two subgroup I and two subgroup II BYDV strains. In P29 plants inoculated with the s...