TY  - JA
AU  - Mujeeb-Kazi,A.
AU  - Cortés,A.
AU  - Riera-Lizarazu,O.
TI  - The cytogenetics of a Triticum turgidum x Psathyrostachys juncea hybrid and its backcross derivatives
SN  - 1432-2242
PY  - 1995///
KW  - Backcrossing
KW  - Chromosome manipulation
KW  - Drought resistance
KW  - Hybridization
KW  - Resistance to injurious factors
KW  - Saline soils
KW  - Triticum turgidum
KW  - AGROVOC
KW  - Wheat
N1  - Peer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0040-5752
N2  - Psathyrostachys juncea (2n = 2x = 14, NN), a source of barley yellow dwarf luteovirus (BYDV) resistance with tolerance to drought and salinity, was successfully hybridized in its autotetraploid form (2n = 4x = 28, NNNN) as the pollen parent to durum wheat (Triticum turgidum [T. durum]). The 2n = 4x = 28 (ABNN) F1 hybrid has a mean meiotic metaphase I configuration of 20.29 univalents + 0.29 ring bivalents + 3.36 rod bivalents + 0.14 trivalents. Spike length, internode length, glume awn length and lemma awn length, as well as the general spike morphology of the F1 hybrid, are intermediate with those of the 2 parents. Pollinating the ABNN F1 hybrid gave backcross (BC1) derivatives of an amphiploid (AABBNN) that expresses limited self-fertility. BC2 derivatives were obtained from these plants. Direct transfers of useful genes from P. juncea to wheat would require substantial genetic manipulation strategies. Both conventional and novel methodologies, which may complement each other, and so facilitate reaching an agricultural objective end point, are addressed
UR  - http://libcatalog.cimmyt.org/download/cis/G56366.pdf
T2  - Theoretical and Applied Genetics
ER  -