Botanica Pacifica. A journal of plant science and conservation 2022
Article first published online: 20 FEB 2022 | DOI: 10.17581/bp.2022.11103 | EDN: CTTKPC
A new record of chromosome count in mixoploid karyotype of Strobilanthes hamiltoniana (Steud.) Bosser & Heine (Acanthaceae)
Reshmi Chembrammal
&
John Ernest Thoppil Cell and Molecular Biology Division, Department of Botany, University of Calicut, Kerala, India
The mixoploid karyotype found in the garden plant, Strobilanthes hamiltoniana, is a new record of chromosome count to the contemporary knowledge. The detailed karyomorphometrical analysis of the plant revealed a symmetric karyotype which is primitive. A hypoploid variant along with the normal chromosome complement was recorded within a root meristem with karyotype formulae as 10 nm and 20 nm respectively. In the diploid cells two pair of chromosomes have secondary constriction with an average chromosome length of 1.81 μm. The high values of symmetric indices and low values of asymmetric indices proved the primitive nature of the karyotype.
Чембраммал Р., Топпил Дж.Э. Новое число хромосом в миксоплоидном кариотипе Strobilanthes hamiltoniana (Steud.) Bosser & Heine (Acanthaceae). Миксоплоидный кариотип, обнаруженный у садового растения Strobilanthes hamiltonian, – это новое число хромосом для данного вида. Детальный кариоморфометрический анализ растения позволил выявить симметричный кариотип, что является примитивным признаком. Гипоплоидный вариант наряду с нормальным дополнением хромосом был зарегистрирован в корневой меристеме с формулами кариотипа 10 нм и 20 нм, соответственно. В диплоидных клетках две пары хромосом имеют вторичное сужение со средней длиной хромосомы 1,81 мкм. Высокие значения симметричных индексов и низкие значения асимметричных индексов подтверждают примитивный характер кариотипа.
Keywords: mixoploidy, Strobilanthes hamiltoniana, karyotype, symmetric, polysomaty, миксоплоидия, кариотип, симметричность, полисоматичность
References
Abraham, Z. & P.N. Prasad 1983. A system of chromosome classification and nomenclature. Cytologia 48(1):95-101. CrossRef
Anil, S.R. & E.A. Siril 2015. Karyosystematic studies in Amorphophallus Blume ex Decne. Journal of Root Crops 39(2):39-50.
Astuti, G., F. Roma-Marzio & L. Peruzzi 2017. Traditional karyomorphological studies: can they still provide a solid basis in plant systematics. Flora Mediterranea 27:91-98.
Augustine J. 2018. Strobilanthes in the Western ghats, India. Malabar Natural History Society, Kozhikode, 94 pp.
Beevy, S.S. & N.H. Bai 2013. Karyotypic analysis of parents and F 1 hybrids of intra-specific crosses in Momordica charantia L. The Nucleus 56(2):99-105. CrossRef
Biswas, T. & S. Mukhopadhyay 2020. Comparison of different cytological parameters of three species of Ocimum. Bangladesh Journal of Botany 49(4):1163-1167. CrossRef
Chembrammal, R. & J.E. Thoppil 2021. Mixoploidy in Strobilanthes anamallaica J.R.I. Wood (Acanthaceae Juss.) an important taxon of south-western Ghat, India. The Nucleus 2021:1-6. CrossRef
Costa, J.Y. & E.R. Forni-Martins 2003. Karyology of some Brazilian species of Alismataceae. Botanical Journal of the Linnean Society 143(2):159-164. CrossRef
Gouas, L., C. Goumy, L. Véronèse, A. Tchirkov & P. Vago 2008. Gene dosage methods as diagnostic tools for the identification of chromosome abnormalities. Pathologie Biologie 56(6):345-353. CrossRef
Govindarajan, T. & D. Subramanian 1983. Karyomorphological studies in south Indian Acanthaceae. Cytologia 48(3):491-504. CrossRef
Govindarajan, T. & D. Subramanian 1985. Karyomorphological studies in south Indian Acanthaceae. Cytologia 50(3):473-482. CrossRef
Greilhuber, J. & F. Speta 1976. C-banded karyotypes in the Scilla hohenackeri group, S. persica and Puschkinia (Liliaceae). Plant Systematics and Evolution 126(2):149-188. CrossRef
Hamideh, J., S.M. Hesamzadeh Hejazi & M.S. Babayev 2009. Karyotypic studies of three Thymus (Lamiaceae) species and populations in Iran. Caryologia 62(4):316-325.
Imai, H.T., Y. Satta & N. Takahata 2001. Integrative study on chromosome evolution of mammals, ants and wasps based on the minimum interaction theory. Journal of Theoretical Biology 210(4):475-497. CrossRef
Kunakh, V.A. 1995. Genomic variability of somatic plant cells. 2. Variability in nature. Biopolimery i Kletka 11(6):5-40 (in Russian). [Кунах В.А. 1995. Геномная изменчивость соматических клеток растений // Биополимеры и клетка. Т. 11, № 6. С. 5-40]. CrossRef
Kunakh, V.A., V.I. Adonin, S.P. Ozheredov & Ya.B. Blyum 2008. Mixoploidy in wild and cultivated species of Cruciferae capable of hybridizing with rapeseed Brassica napus. Tsitologiya i Genetica 42(3):204-209 (in Ukrainian). [Кунах В.А, Адонiн В.I., Ожередов С.П., Блюм Я.Б. 2008. Мiксоплоïдiя у диких та культивованих видiв хрестосвiтих, здатних до гiбридизацiï з рiпаком Brassica napus // Цитология и генетика. Т. 42, № 3. С. 204-209]. CrossRef
Lavania, U. C. & S. Srivastava 1992. A simple parameter of dispersion index that serves as a adjunct to karyotype asymmetry. Journal of Bioscience 17:179-182. CrossRef
Mayrose, I., M.S. Barker & S.P. Otto 2010. Probabilistic models of chromosome number evolution and the inference of polyploidy. Systematic Biology 59:132-144. CrossRef
Mola, L.M. & A.G. Papeschi 2006. Holokinetic chromosomes at a glance. Journal of Basic and Applied Genetics 17(1):17-33.
Montazerinezhad, S., A. Emamjomeh & B. Hajieghrari 2020. Chromosomal abnormality, laboratory techniques, tools and databases in molecular сytogenetics. Molecular Biology Reports 47:9055-9073. CrossRef
Pierre, P.M., S.M. Sousa, L.C. Davide, M.A. Machado & L.F. Viccini 2011. Karyotype analysis, DNA content and molecular screening in Lippia alba (Verbenaceae). Anais da Academia Brasileira de Ciências 83:993-1006. CrossRef
Prajitha, V. & J.E. Thoppil. 2018. Cytogenetic characterization of Amaranthus caudatus L. and Amaranthus hybridus subsp. cruentus (L.) Thell. Cytotechnology 70(1):95-101. CrossRef
Ranjbar, M., R. Karamian & S. Nouri 2011. Diploid-tetraploid mixoploidy in a new species of Astragalus (Fabaceae) from Iran. Annales Botanici Fennici 48(4):343-351. CrossRef
Romero-Zarco, C. 1986. A new method for estimating karyotype asymmetry. Taxon 35:526-530. CrossRef
Saha, S., F. Akbar & K.N. Begum 2021. A report of karyotype and B-chromosome in Costus spicatus (Jacq.) Sw. from Bangladesh. Cytologia 86(1):41-45. CrossRef
Sharma, A.K. & A. Sharma 1990. Chromosome Techniques: Theory and Practice. Aditya Books, New Delhi. Truta, E., G. Vochita, C.M. Rosu, C. Manzu, G. Gheorghita & I.V. Rati 2011. Karyotype traits in Rosa nitidula Besser. Journal of Experimental and Molecular Biology 12(4):111-116.
Vimala, Y., S. Lavania & U.C. Lavania 2021. Chromosome change and karyotype differentiation-implications in speciation and plant systematics. The Nucleus 64:33-54. CrossRef
Xin-Hua, Z., J.A. T.D. Silva & G.H. Ma 2010. Karyotype analysis of Santalum album L. Caryologia 63(2):142-148. CrossRef
Ye, J.Q., Y.Y. Jia, K. Fan, X.J. Sun & X.M. Wang 2014. Karyotype analysis of Rheum palmatum. Genetics and Molecular Research 13(4):9056-9061. CrossRef
Zuo, L. & Q. Yuan 2011. The difference between the heterogeneity of the centromeric index and intrachromosomal asymmetry. Plant Systematics and Evolution 297(1):141-145. CrossRef
|
|