Research output: Contribution to journal › Article › peer-review
STENOFOLIA gene and regulation of somatic embryogenesis in Medicago truncatula. / Tvorogova, V. E.; Fedorova, Yu A.; Zhang, F.; Lutova, L. A.
In: Russian Journal of Plant Physiology, Vol. 63, No. 6, 01.11.2016, p. 811-821.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - STENOFOLIA gene and regulation of somatic embryogenesis in Medicago truncatula
AU - Tvorogova, V. E.
AU - Fedorova, Yu A.
AU - Zhang, F.
AU - Lutova, L. A.
N1 - Publisher Copyright: © 2016, Pleiades Publishing, Ltd.
PY - 2016/11/1
Y1 - 2016/11/1
N2 - Expression of STENOFOLIA (STF) gene was analyzed in different organs of line R-108 barrel medic plants (Medicago truncatula Gaertn.). Maximum levels of STF expression were observed in the generative organs, fruits and flowers, suggesting its involvement in the reproduction process. The local analysis of STF expression during somatic embryogenesis in M. truncatula showed that the STF promoter is activated directly in somatic embryos. Overexpression of STF gene in the calli of R-108 line leads to increased embryogenicity, accompanied by reduced levels of MtGH3.6 gene expression, which is responsible for auxin metabolism, and also reduced expression levels of gene encoding MtHB1 transcription factor. Comparative analysis of MtGH3.6 and MtHB1 gene expression dynamics in the calli of embryogenic 2HA line and non-embryogenic A17 line of M. truncatula showed that these genes demonstrated reduced level of expression in embryogenic calli compared to non-embryogenic. These data suggested that STF stimulates the formation of somatic embryos, directly or indirectly inhibiting the transcription of MtGH3.6, MtHB1 and, probably, many other genes.
AB - Expression of STENOFOLIA (STF) gene was analyzed in different organs of line R-108 barrel medic plants (Medicago truncatula Gaertn.). Maximum levels of STF expression were observed in the generative organs, fruits and flowers, suggesting its involvement in the reproduction process. The local analysis of STF expression during somatic embryogenesis in M. truncatula showed that the STF promoter is activated directly in somatic embryos. Overexpression of STF gene in the calli of R-108 line leads to increased embryogenicity, accompanied by reduced levels of MtGH3.6 gene expression, which is responsible for auxin metabolism, and also reduced expression levels of gene encoding MtHB1 transcription factor. Comparative analysis of MtGH3.6 and MtHB1 gene expression dynamics in the calli of embryogenic 2HA line and non-embryogenic A17 line of M. truncatula showed that these genes demonstrated reduced level of expression in embryogenic calli compared to non-embryogenic. These data suggested that STF stimulates the formation of somatic embryos, directly or indirectly inhibiting the transcription of MtGH3.6, MtHB1 and, probably, many other genes.
KW - embryogenic and non-embryogenic calli
KW - Medicago truncatula
KW - somatic embryogenesis
KW - STENOFOLIA
KW - transcription factors
UR - http://www.scopus.com/inward/record.url?scp=84991720050&partnerID=8YFLogxK
U2 - 10.1134/S1021443716060133
DO - 10.1134/S1021443716060133
M3 - Article
AN - SCOPUS:84991720050
VL - 63
SP - 811
EP - 821
JO - Russian Journal of Plant Physiology
JF - Russian Journal of Plant Physiology
SN - 1021-4437
IS - 6
ER -
ID: 87676636