ISSN 1022-7954, Russian Journal of Genetics, 2007, Vol. 43, No. 9, pp. 1058–1061. © Pleiades Publishing, Inc., 2007.
Original Russian Text © K.U. Kurkiev, 2007, published in Genetika, 2007, Vol. 43, No. 9, pp. 1269–1272.
The introgression of the genes reducing the height
of wheat and rye plants and causing no negative effect
on the valuable traits into triticale genotype is an impor-
tant task when producing new initial material intended
for breeding of this culture.
Alleles of the genes
were introduced from
wheat into triticale genotype [1–3]. The cultivars
Snoopy, UC-90, Petkus Korotkostebel’nyi, Kustro,
Karlik Moskovskii, and EM-1 and its derivatives were
the donors of reduced height for triticale. The deriva-
tives are carriers of the dominant allele
; the rest are
the donors of recessive genes determining reduced
height [2, 4–6].
However, the diversity of wheat and rye reduced
height genes is incompletely utilized in the breeding of
triticale. Correspondingly, we introgressed the gene
from the reduced height winter wheat cultivar
Ai-bian 1 into triticale genotype.
The work was conducted at the Dagestan Experi-
mental Station, Vavilov All-Russia Institute of Plant
Industry, in 2002–2006. The wheat cultivars Ai-Bian 1
and Chinese Spring (CS) and the rye cultivar Sara-
tovskaya 7 were used as the initial material. The aver-
age height of the cultivar Ai-bian 1 is 32 cm, and the
normal spike size is 7.2 cm. The number of nodes is the
same as in the other commonwheat cultivars as well as
the number of spikelets per spike. Ai-Bian 1 ﬂowers
without complete heading yet develops the normal
number of grains per spike . According to Loskutova
, Ai-Bian 1 carries two reduced height genes: one
and one recessive gene.
Pollination was conducted by twirl method. The
ﬁeld experiments were commenced at the same date
during autumn sawing in a grain–row crop rotation.
The nutrition area per plant was 5
20 cm. The plants
were harvested with roots. The plant height was deter-
mined to the spike apex of the main stem. The follow-
ing characteristics were also recorded when analyzing
hybrids: the length of internodes, number
of stems, spike length, number of spikelets and grains
in the main spike, and the length and width of leaf
blades. The experimental data were processed statisti-
cally according to Dospekhov .
When the wheat Ai-Bian 1 was crossed with rye,
grains set rarely and were unviable. Several thousands
of ﬂorets of this wheat cultivar were pollinated with rye
Introgression of the Reduced Height Gene
from the Wheat Cultivar Ai-Bian 1 into the Triticale Genotype
K. U. Kurkiev
Dagestan Experimental Station, Vavilov All-Russia Institute of Plant Industry,
Vavilovo, Derbent raion, Republic of Dagestan, 368612 Russia;
Received October 17, 2006
—A gene determining reduced height,
, from the wheat cultivar Ai-Bian 1 was introgressed into
the triticale genotype. Initially, Ai-Bian 1 was crossed with the wheat cultivar Chinese Spring (CS), a carrier of
genes, to overcome the uncrossability of this cultivar with rye. Amphidiploids were produced by hybridizing
Ai-Bian 1) plants displaying reduced height (at the level of Ai-Bian 1) with rye. Free pollination
Saratovskaya 7 with triticale pollen gave fertile viable hybrids; the majority of
hybrids were phenotypically closer to octoploid triticale; however, the variants intermediate between octo- and
hexaploids were also present. The height of amphidiploids varied from 40 to 90 cm, and the grain yield per spike
amounted on the average to 11.7–24.7 grains, which exceeded essentially this value in F
Seed setting, %
Number of plants from cross, %
The rate of set grains in the hybrids of the rye Saratovskaya
7 with the reduced height F
plants (Ai-Bian 1
with initial wheat cultivars (Derbent, 2004).