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Compensatory Effect of the IScGrf3-2R/I Gene in Semi-Dwarf Spring Triticale
Plants (Basel), 2022-11, Vol.11 (22)
[Peer Reviewed Journal]
COPYRIGHT 2022 MDPI AG ;ISSN: 2223-7747 ;EISSN: 2223-7747 ;DOI: 10.3390/plants11223032
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Title:
Compensatory Effect of the IScGrf3-2R/I Gene in Semi-Dwarf Spring Triticale
Author:
Chernook, Anastasiya G
;
Bazhenov, Mikhail S
;
Kroupin, Pavel Yu
;
Ermolaev, Aleksey S
;
Kroupina, Aleksandra Yu
;
Vukovic, Milena
;
Avdeev, Sergey M
;
Karlov, Gennady I
;
Divashuk, Mikhail G
Subjects:
Wheat
Is Part Of:
Plants (Basel), 2022-11, Vol.11 (22)
Description:
The dwarfness in many triticale cultivars is provided by the dominant Ddw1 (Dominant dwarf 1) allele found in rye. However, along with conferring semi-dwarf phenotype to improve resistance to lodging, this gene also reduces grain size and weight and delays heading and flowering. Grf (Growth-regulating factors) genes are plant-specific transcription factors that regulate plant growth, including stem growth, in terms of length and thickness, and leaf and fruit size. In this work, we partially sequenced the rye gene ScGrf3 on chromosome 2R homologous to the wheat Grf3 gene, and found multiple polymorphisms in intron 3 and exon 4 complying with two alternative alleles (haplotypes ScGrf3-2Ra and ScGrf3-2Rb). For the identification of these, we developed a codominant PCR marker. Using a new marker, we studied the effect of ScGrf3-2R alleles in combination with the Ddw1 dwarf gene on economically valuable traits in F[sub.4] and F[sub.5] recombinant lines of spring triticale from the hybrid combination Valentin 90 x Dublet, grown in the Non-Chernozem zone for 2 years. Allele ScGrf3-2Ra was associated with greater thousand-grain weight, higher spike productivity, and earlier heading and flowering, which makes ScGrf3-2R a perspective compensator for negative effects of Ddw1 on these traits and increases prospects for its involvement in breeding semi-dwarf cultivars of triticale.
Publisher:
MDPI AG
Language:
English
Identifier:
ISSN: 2223-7747
EISSN: 2223-7747
DOI: 10.3390/plants11223032
Source:
PubMed Central
Directory of Open Access Journals
ROAD: Directory of Open Access Scholarly Resources
ProQuest Central
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