Combined effect of genes ETR1 and ETR2 roots for branching Arabidopsis thaliana (L.) Heynh.

  • S. G. Khablak


Aim. The aim of research is the study of inheritance the root system of A. thaliana in the interaction the genes ETR1 and ETR2. Methods. Сomparative morphology – to compare the similarities and differences in the structure of the root systems plants, hybridlogical analysis crossing mutant lines and genetic analysis of inheritance of characteristics of the root system. Results. It was found that by crossing plants of the mutant lines Etr1-1 x Etr2-1 in the F2 generation occurs polymeric gene interactions ETR1 and ETR2. The splitting in this case is F2 9: 6: 1. In the first generation hybrids somatic heterosis is observed, which is manifested in a more powerful development of lateral roots compared to the initial forms. In the second generation is the process of splitting of hybrids, and their superiority over the length of lateral roots of parental forms is reduced. Conclusions. The results of the analysis carried out by a cross between plants of Arabidopsis mutant lines (Etr1-1 x Etr2-1) showed that the inheritance of characteristics of the root system in the interaction ETR1 and ETR2 genes occurs on the type of polymer gene action.

Keywords: arabidopsis, root system, gene, mutation, heterosis.


Kulaeva O.N. Kak reguliruetsia zhizn' rasteniy. Sorosovskiy obrazovatel'nyy zhurnal. 1995. No 1. P. 2–27. [in Russian]

Kulaeva O.N. Etilen v zhizni rasteniy. Sorosovskiy obrazovatel'nyy zhurnal. 1998. No 11. P. 78–84. [in Russian]

Johnson P.R., Ecker J.R. The ethylene gas signal transduction pathway: a molecular perspective. Annual Review of Genetics. 1998. V. 32(2). Р. 227-254. doi: 10.1146/annurev.genet.32.1.227

Liu Q., Xu C., Wen C.K. Genetic and transformation studies reveal negative regulation of ERS1 ethylene receptor signaling in Arabidopsis. BMC Plant Biol. 2010. V. 10(2). Р. 60-64. doi: 10.1186/1471-2229-10-60

Hua J., Chang C., Sun Q., Meyerowitz E.M. Ethylene insensitivity conferred by Arabidopsis ERS gene. Sci. 1995. V. 269(1). Р. 1712-1714. doi: 10.1126/science.7569898

Qu X., Hall B.P., Gao Z., Schaller G.E. A strong constitutive ethylene-response phenotype conferred on Arabidopsis plants containing null mutations in the ethylene receptors ETR1 and ERS1. BMC Plant Biol. 2007. V. 15(7). Р. 3-7.

Moussatche P., Klee H.J. Autophosphorylation activity of the Arabidopsis ethylene receptor multigene family. J. Biol. Chem. 2004. V. 279(4). Р. 4834-4841. doi: 10.1074/jbc.M403100200

Chang C., Kwok S.F., Bleecker A.B. Arabidopsis ethylene-response gene ETR1: similarity of product to two-component regulators. Science. 1993. V. 262(2). Р. 539-544. doi: 10.1126/science.8211181

Rubina B.A., Chernavina I.A., Potapov N.G. i dr. Bol'shoy praktikum po fiziologii rasteniy: uchebn. posobie dlia studentov biol. spets. vuzov. Moskva: Vyssh. shkola, 1978. 408 p. [in Russian]

Lakin G.F. Biometriia. Moskva: Vyssh. shk., 1990. 352 p. [in Russian]

Borovikov V. STATISTICA. Iskusstvo analiza dannykh na komp'iutere: dlia professionalov. Sankt-Peterburg: Piter, 2003. 688 p. [in Russian]

Abramov Z.V. Praktikum po genetike. Leningrad: Agropromizdat, 1992. 224 p. [in Russian]

Guliaev G.V. Genetika. Moskva: Kolos, 1984. 351 p. [in Russian]

Lobashev M.E. Genetika. Leningrad: Izd-vo LGU, 1985. 485 p. [in Russian]

Glazko V.I., Glazko G.V. Slovar' terminov po prikladnoy genetike i DNK tekhnologiiam. Kyiv: IAB, 1999. 342 p. [in Russian]

Mamedova A.D. Aktivnost' sinteza RNK i DNK v kletochnykh organellakh u sel'skokhoziaystvennykh kul'tur v sviazi s geterozisom. Sel'skokhoziaystvennaia biologiia. 2013. No 3. P. 37–44. [in Russian]

Genetika razvitiia rasteniy / Pod red. S.G. Inge-Vechtomova. Sankt-Peterburg: Nauka, 2000. 539 p. [in Russian]

Ayala F., Kayger D. Sovremennaia genetika. Moskva: Mir, 1988. 335 p. [in Russian]

Miunttsing A. Geneticheskie issledovaniia. Moskva: Izdatel'stvo inostrannoy literatury, 1963. 487 s. [in Russian]

Dominantnost'. Wikipedia. Retrieved from:'.

Shumnyy V.K. Problemy genetiki rasteniy. Vestnik VOGiS. 2004. V. 8(2). P. 32–39. [in Russian]