Effects of Rht17 in combination with Vrn-B1 and Ppd-D1 alleles on agronomic traits in wheat in black earth and non-black earth regions

被引：10

作者：

Kroupin, Pavel Yu. ^{[1
,2
]}

Karlov, Gennady I. ^{[1
,2
]}

Bespalova, Ludmila A. ^{[3
]}

Salina, Elena A. ^{[4
]}

Chernook, Anastasiya G. ^{[1
,2
]}

Watanabe, Nobuyoshi ^{[5
]}

Bazhenov, Mikhail S. ^{[1
,2
]}

Panchenko, Vladimir V. ^{[3
]}

Nazarova, Lubov A. ^{[6
]}

Kovtunenko, Victor Ya. ^{[3
]}

Divashuk, Mikhail G. ^{[1
,2
,6
]}

机构：

[1] All Russia Res Inst Agr Biotechnol, Lab Appl Genom & Crop Breeding, Timiryazevskaya str 42, Moscow 127550, Russia

[2] Russian State Agr Univ, Moscow Timiryazev Agr Acad, Ctr Mol Biotechnol, Timiryazevskaya St 49, Moscow 127550, Russia

[3] Natl Ctr Grain, Dept Breeding & Seed Prod Wheat & Tritical, Cent Estate KNIISH, Krasnodar 350012, Russia

[4] RAS, Inst Cytol & Genet SB, Kurchatov Genom Ctr, Prospekt Lavrentyeva 10, Novosibirsk 630090, Russia

[5] Ibaraki Univ, Coll Agr, 3-21-1 Chuo, Ami, Ibaraki 3000393, Japan

[6] All Russia Res Inst Agr Biotechnol, Kurchatov Genom Ctr ARRIAB, Timiryazevskaya Str 42, Moscow 127550, Russia

来源：

BMC PLANT BIOLOGY | 2020年 / 20卷 / Suppl 1期

基金：

俄罗斯科学基金会;

关键词：

Wheat (Triticum aestivum); Dwarfing genes; Photoperiod-response genes; Vernalization genes; Rht; Ppd; Vrn; Harvest index; INSENSITIVE DWARFING GENES; HEIGHT REDUCING GENES; FLOWERING-TIME GENES; BREAD WHEAT; PLANT HEIGHT; COLEOPTILE LENGTH; SPRING-WHEAT; GRAIN-YIELD; PHOTOPERIOD-RESPONSE; HEADING TIME;

D O I：

10.1186/s12870-020-02514-0

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

BackgroundPlant height is an important wheat trait that is regulated by multiple genes, among which Rht is of the utmost value. In wheat, Rht-B1p (=Rht17) is a mutant allele of the Rht gene that encodes for a DELLA-protein and results in the development of gibberellin-insensitive plants with a dwarfing phenotype. The pleiotropic effects of dwarfing genes on yield are highly dependent on both the genetic background and the environmental conditions. In Russia, the Central Non-Black Earth Region and Krasnodar Krai are two economically important regions that require differing management for sustainable wheat production for food, feed and industry. The purpose of our study was to compare the pleiotropic effects of Rht-B1p on the main valuable agronomic traits in the F-3:4 families of the spring bread wheat Chris Mutant/Novosibirskaya 67 in the genetic background of Vrn-B1a/vrn-B1 (spring/winter phenotype) and Ppd-D1a/Ppd-D1b (insensitivity/sensitivity to photoperiod) alleles in a field experiment in Moscow and Krasnodar Krai.ResultsPlant height was reduced on average by 21cm (28%) and 25cm (30%), respectively; Ppd-D1a slightly strengthened the dwarfing effect in Moscow and mitigated it in Krasnodar Krai. Grain weight of the main spike was reduced by Rht-B1p in Moscow and to lesser extent in Krasnodar; Ppd-D1a and Vrn-B1a tended to partially compensate for this loss in Krasnodar Krai. Thousand grain weight was reduced on average by 5.3g (16%) and 2.9g (10%) in Moscow and Krasnodar Krai, respectively, but was partially compensated for by Ppd-D1a in Krasnodar Krai. Harvest index was increased due to Rht-B1p by 6 and 10% in Moscow and Krasnodar Krai, respectively. Rht-B1p resulted in a delay of heading by 1-2days in Moscow. Ppd-D1a accelerated heading by 1day and 6days in Moscow and in Krasnodar Krai, respectively.ConclusionsRht-B1p could be introduced into wheat breeding along with dwarfing genes such as Rht-B1b and Rht-D1b. Special attention should be paid to its combination with Ppd-D1a and Vrn-B1a as regulators of developmental rates, compensators of adverse effects of Rht-B1p on productivity and enhancers of positive effect of Rht-B1p on harvest index.

引用

页数：17

共 74 条

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