Cytogenetic comparison of Cuscuta psorothamnensis and C. veatchii (Convolvulaceae), two species originated from recurrent hybridization between the same diploid parents
Fil: Moura Ibiapino, Amalia. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina.
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| Format: | info:eu-repo/semantics/publishedVersion |
| Language: | spa |
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2024
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| Online Access: | http://hdl.handle.net/11086/553346 https://doi.org/10.1101/2024.04.15.589596 |
| _version_ | 1808636209598038016 |
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| author | Moura Ibiapino, Amalia Urdampilleta, Juan García, Miguel A. Pedrosa-Harand, Andrea Stefanović, Saša Costea, Mihai |
| author2 | https://orcid.org/0000-0002-2613-5259 |
| author_facet | https://orcid.org/0000-0002-2613-5259 Moura Ibiapino, Amalia Urdampilleta, Juan García, Miguel A. Pedrosa-Harand, Andrea Stefanović, Saša Costea, Mihai |
| author_sort | Moura Ibiapino, Amalia |
| collection | Repositorio Digital Universitario |
| description | Fil: Moura Ibiapino, Amalia. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina. |
| format | info:eu-repo/semantics/publishedVersion |
| id | rdu-unc.553346 |
| institution | Universidad Nacional de Cordoba |
| language | spa |
| publishDate | 2024 |
| record_format | dspace |
| spelling | rdu-unc.5533462024-08-23T06:22:21Z Cytogenetic comparison of Cuscuta psorothamnensis and C. veatchii (Convolvulaceae), two species originated from recurrent hybridization between the same diploid parents Moura Ibiapino, Amalia Urdampilleta, Juan García, Miguel A. Pedrosa-Harand, Andrea Stefanović, Saša Costea, Mihai https://orcid.org/0000-0002-2613-5259 http://orcid.org/0000-0001-9922-2866 http://orcid.org/0000-0001-5213-4770 http://orcid.org/0000-0003-3049-1763 Cuscuta Allopolyploidy GISH Parasitic plants Reticulate evolution Speciation info:eu-repo/semantics/publishedVersion Fil: Moura Ibiapino, Amalia. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina. Fil: Ibiapino, Amalia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Urdampilleta, Juan. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina. Fil: Urdampilleta, Juan. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: García, Miguel A. Real Jardín Botánico-CSIC, Madrid; Spain. Fil: Pedrosa-Harand, Andrea. Universidade Federal de Pernambuco, Recife; Brazil. Fil: Stefanović, Saša. University of Toronto Mississauga. Department of Biology; Canadá. Fil: Costea, Mihai. University of Wilfrid Laurier. Department of Biology, Waterloo; Canadá. Abstract: Genus Cuscuta L. (Convolvulaceae) exhibits cases of hybridization and allopolyploidy. Section Denticulatae, subg. Grammica, includes four species: the allopolyploids, C. veatchii and C. psorothamnensis (2n = 60), which originated from two independent reticulation events between the diploids, C. denticulata and C. nevadensis (2n = 30). The allopolyploids are morphologically similar, but are differing in their geographical distribution and host specificity. While cytogenetic data have been reported for C. veatchii, this study aims to provide a comparative analysis with C. psorothamnensis. To characterize the chromosomal complement of C. psorothamnensis and compare it with C. veatchii, we used CMA/DAPI banding, FISH, and GISH. The karyotypes of both species displayed similarity in chromosome number, size, and symmetry, and interphase nucleus organization. Both species exhibited a pair of 5S and 35S rDNA sites adjacent on the same chromosome. The number of 5S rDNA sites in C. psorothamnensis is variable, with some individuals displaying four, five, and six sites. Our results show: 1) the chromosomal pair carrying adjacent 5S and 35S rDNA in C. denticulata is retained in the polyploids; 2) the loss of C. nevadensis rDNA sites occurred in both tetraploids; 3) C. psorothamnensis and C. veatchii are allopolyploids part of a species complex, originated from successive independent hybridization events between C. denticulata and C. nevadensis; and 4) C. psorothamnensis is probably more recent in origin than C. veatchii based on the degree of diploidization. This cytogenetic comparison allows us to understand the processes involved in the emergence of new polyploid species by hybridization. info:eu-repo/semantics/publishedVersion Fil: Moura Ibiapino, Amalia. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina. Fil: Ibiapino, Amalia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Urdampilleta, Juan. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina. Fil: Urdampilleta, Juan. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: García, Miguel A. Real Jardín Botánico-CSIC, Madrid; Spain. Fil: Pedrosa-Harand, Andrea. Universidade Federal de Pernambuco, Recife; Brazil. Fil: Stefanović, Saša. University of Toronto Mississauga. Department of Biology; Canadá. Fil: Costea, Mihai. University of Wilfrid Laurier. Department of Biology, Waterloo; Canadá. 2024-08-22T14:23:48Z 2024-08-22T14:23:48Z 2024-04 article Moura, A. I., Urdampilleta, J., Garcia, M. A., Pedrosa-Harand, A., Stefanovic, S., & Costea, M. (2024). Cytogenetic comparison of Cuscuta psorothamnensis and C. veatchii (Convolvulaceae), two species originated from recurrent hybridization between the same diploid parents. bioRxiv, 2024-04. http://hdl.handle.net/11086/553346 https://doi.org/10.1101/2024.04.15.589596 spa Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| spellingShingle | Cuscuta Allopolyploidy GISH Parasitic plants Reticulate evolution Speciation Moura Ibiapino, Amalia Urdampilleta, Juan García, Miguel A. Pedrosa-Harand, Andrea Stefanović, Saša Costea, Mihai Cytogenetic comparison of Cuscuta psorothamnensis and C. veatchii (Convolvulaceae), two species originated from recurrent hybridization between the same diploid parents |
| title | Cytogenetic comparison of Cuscuta psorothamnensis and C. veatchii (Convolvulaceae), two species originated from recurrent hybridization between the same diploid parents |
| title_full | Cytogenetic comparison of Cuscuta psorothamnensis and C. veatchii (Convolvulaceae), two species originated from recurrent hybridization between the same diploid parents |
| title_fullStr | Cytogenetic comparison of Cuscuta psorothamnensis and C. veatchii (Convolvulaceae), two species originated from recurrent hybridization between the same diploid parents |
| title_full_unstemmed | Cytogenetic comparison of Cuscuta psorothamnensis and C. veatchii (Convolvulaceae), two species originated from recurrent hybridization between the same diploid parents |
| title_short | Cytogenetic comparison of Cuscuta psorothamnensis and C. veatchii (Convolvulaceae), two species originated from recurrent hybridization between the same diploid parents |
| title_sort | cytogenetic comparison of cuscuta psorothamnensis and c veatchii convolvulaceae two species originated from recurrent hybridization between the same diploid parents |
| topic | Cuscuta Allopolyploidy GISH Parasitic plants Reticulate evolution Speciation |
| url | http://hdl.handle.net/11086/553346 https://doi.org/10.1101/2024.04.15.589596 |
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