Abstract
Cytogenetics of five species of Murdannia (Commelinaceae) from North-eastern Thailand were conducted. The result revealed that the diploid chromosome number (2n) and karyotype formula were as follow: M. edulis (Stokes) Faden; 2n = 20 (12 m + 4sm + 4st), M. loriformis (Hassk.) R.S.Rao & Kammathy; 2n = 18 (4 m + 10sm + 4st), M. madica (Lour.) D.Y.Hong; 2n = 22 (8 m + 8sm + 6st), M. nudiflora (L.) Brenan; 2n = 22 (14 m + 6sm + 2st) and M. spectabilis (Kurz) Faden; 2n = 20 (8 m + 8sm + 4st). The fundamental numbers (NF) of all species were 40, 36, 44, 44 and 40, respectively. The diploid chromosome numbers from root tips of M. edulis, M. madica and M. spectabilis were studied for the first time. Moreover, four species, M. edulis, M. madica, M. nudiflora and M. spectabilis had new reported of their NF, karyotype formula and total chromosome length. Furthermore, the karyotype structure and total chromosome length of the four species in this study differed from previous studies. The cytogenetic characterization including chromosome number, NF and karyotype of five Murdannia species in this study can be used for classification.
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Acknowledgements
We are grateful to Mahasarakham University and Walai Rukhavej Botanical Research Institute, Mahasarakham University, Thailand, for their facilities during this study. Many thanks to Dr. Rattanavalee Senavongse for her help with laboratory techniques. I would like to thank Dr. Jolyon Dodgson for language editing and suggestions to improve the manuscript.
Funding
This work was financially supported by the Thailand Science Research and Innovation (TSRI) 2021 fund.
This research project was financially supported by Mahasarakham University.
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Surapon Saensouk = Collected specimens, Laboratory practice, Preparing manuscript, Submission manuscript
Piyaporn Saensouk = Collected specimens, Laboratory practice, Preparing manuscript, Submission manuscript
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Saensouk, P., Saensouk, S. Cytogenetics of five species of genus Murdannia (Commelinaceae) from North-eastern Thailand. Biologia 78, 23–30 (2023). https://doi.org/10.1007/s11756-022-01173-w
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DOI: https://doi.org/10.1007/s11756-022-01173-w