Abstract
Determinacy is a desirable trait in sesame, an important oilseed crop. We have developed an inter-specific hybrid between basally branched indeterminate cultivated Sesamum indicum genotype and wild S. prostratum with no branching yet synchronous pods on the shoot. The hybrid and a few exotic sesame germplasms were successfully screened with a determinacy (dt) gene-based DNA marker. In-silico translation of the partial coding sequences of the dt gene from the two contrasting parent genotypes revealed an SNP (V159A) in S. prostratum. The predicted cytoplasmic dt protein showed a high resemblance with flowering protein centroradialis.
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Acknowledgements
We acknowledge the technical assistance of Mr Jadab Ghosh and Mrs Kaberi Ghosh in a few laboratory experiments.
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GG is funded by intramural project grant of Bose Institute, Department of Science and Technology, Government of India. DD and SB are funded by the UGC, Government of India for research fellowship. The funders had no role in the design of experiments, data collection and analysis, decision to publish, or preparation of the manuscript.
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GG conceived the study, designed and supervised the experiments. DD performed the SSR, sequencing and in-silico experiments. SB did the validation experiments. MP did the RT-PCR and expression analysis. GG and DD wrote the manuscript. All the authors approved the manuscript.
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Dutta, D., Banerjee, S., Pal, M. et al. Validation of determinate (dt) gene-based DNA marker in inter-specific hybrid sesame and in-silico analysis of the predicted dt protein structures. Physiol Mol Biol Plants 28, 139–152 (2022). https://doi.org/10.1007/s12298-022-01135-1
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DOI: https://doi.org/10.1007/s12298-022-01135-1