“End-to-End Chromosome Fusion” as the Main Driver of Descending Dysploidy in <i>Vigna lasiocarpa</i> (Mart. ex Benth.) Verdc. (Leguminosae Juss.)
The genus <i>Vigna</i> Savi (Leguminosae Juss.) comprises approximately 150 species, classified into five subgenera, most of which exhibit a diploid chromosome number of 2<i>n</i> = 22. However, the wild species <i>Vigna lasiocarpa</i> (Benth) Verdc. (<i>V&l...
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2025-06-01
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| author | Lazaro Serafim Jarbson Henrique Silva Sibelle Dias Ana Rafaela da Silva Oliveira Maria Clara Nunes Antônio Félix da Costa Ana Maria Benko-Iseppon Jiming Jiang Lívia do Vale Martins Ana Christina Brasileiro-Vidal |
| author_facet | Lazaro Serafim Jarbson Henrique Silva Sibelle Dias Ana Rafaela da Silva Oliveira Maria Clara Nunes Antônio Félix da Costa Ana Maria Benko-Iseppon Jiming Jiang Lívia do Vale Martins Ana Christina Brasileiro-Vidal |
| author_sort | Lazaro Serafim |
| collection | DOAJ |
| description | The genus <i>Vigna</i> Savi (Leguminosae Juss.) comprises approximately 150 species, classified into five subgenera, most of which exhibit a diploid chromosome number of 2<i>n</i> = 22. However, the wild species <i>Vigna lasiocarpa</i> (Benth) Verdc. (<i>V</i>. subg. <i>Lasiospron</i>) is notable for its dysploid chromosome number of 2<i>n</i> = 20. This study aimed to elucidate the chromosomal events involved in the karyotype evolution of <i>V. lasiocarpa</i> (<i>Vla</i>). We used oligopainting probes from chromosomes 1, 2, 3, and 5 of <i>Phaseolus vulgaris</i> L. and two barcode probes from the genome of <i>V. unguiculata</i> (L.) Walp. Additionally, bacterial artificial chromosomes (BACs) from <i>V. unguiculata</i> and <i>P. vulgaris</i>, along with a telomeric probe from <i>Arabidopsis thaliana</i> (L.) Heynh., were hybridized to <i>V. lasiocarpa</i> metaphase chromosomes to characterize <i>Vla</i>3, <i>Vla</i>7/5, and <i>Vla</i>9. Our findings revealed conserved oligo-FISH patterns on chromosomes 2, 6, 8, 10, and 11 between <i>V. unguiculata</i> and <i>V. lasiocarpa.</i> Paracentric and pericentric inversions were identified for <i>Vla</i>3 and <i>Vla</i>9, respectively. Our integrative approach revealed that the dysploid chromosome originated from an “end-to-end fusion” of homoeologous chromosomes 5 and 7. This is the first report on the chromosomal mechanisms underlying descending dysploidy in <i>Vigna</i>, providing new insights into the evolutionary dynamics of the genus. |
| format | Article |
| id | doaj-art-c7ff30ba62b648f8b84a687d894d20b3 |
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| language | English |
| publishDate | 2025-06-01 |
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| spelling | doaj-art-c7ff30ba62b648f8b84a687d894d20b32025-08-20T03:16:36ZengMDPI AGPlants2223-77472025-06-011412187210.3390/plants14121872“End-to-End Chromosome Fusion” as the Main Driver of Descending Dysploidy in <i>Vigna lasiocarpa</i> (Mart. ex Benth.) Verdc. (Leguminosae Juss.)Lazaro Serafim0Jarbson Henrique Silva1Sibelle Dias2Ana Rafaela da Silva Oliveira3Maria Clara Nunes4Antônio Félix da Costa5Ana Maria Benko-Iseppon6Jiming Jiang7Lívia do Vale Martins8Ana Christina Brasileiro-Vidal9Departamento de Genética, Centro de Biociências, Universidade Federal de Pernambuco, Recife 50670-901, Pernambuco, BrazilDepartamento de Genética, Centro de Biociências, Universidade Federal de Pernambuco, Recife 50670-901, Pernambuco, BrazilDepartamento de Genética, Centro de Biociências, Universidade Federal de Pernambuco, Recife 50670-901, Pernambuco, BrazilDepartamento de Genética, Centro de Biociências, Universidade Federal de Pernambuco, Recife 50670-901, Pernambuco, BrazilDepartamento de Genética, Centro de Biociências, Universidade Federal de Pernambuco, Recife 50670-901, Pernambuco, BrazilInstituto Agronômico de Pernambuco, Recife 50761-000, Pernambuco, BrazilDepartamento de Genética, Centro de Biociências, Universidade Federal de Pernambuco, Recife 50670-901, Pernambuco, BrazilDepartment of Plant Biology, Michigan State University, East Lansing, MI 48824, USAUniversidade Federal do Piauí, Floriano 64800-000, Piauí, BrazilDepartamento de Genética, Centro de Biociências, Universidade Federal de Pernambuco, Recife 50670-901, Pernambuco, BrazilThe genus <i>Vigna</i> Savi (Leguminosae Juss.) comprises approximately 150 species, classified into five subgenera, most of which exhibit a diploid chromosome number of 2<i>n</i> = 22. However, the wild species <i>Vigna lasiocarpa</i> (Benth) Verdc. (<i>V</i>. subg. <i>Lasiospron</i>) is notable for its dysploid chromosome number of 2<i>n</i> = 20. This study aimed to elucidate the chromosomal events involved in the karyotype evolution of <i>V. lasiocarpa</i> (<i>Vla</i>). We used oligopainting probes from chromosomes 1, 2, 3, and 5 of <i>Phaseolus vulgaris</i> L. and two barcode probes from the genome of <i>V. unguiculata</i> (L.) Walp. Additionally, bacterial artificial chromosomes (BACs) from <i>V. unguiculata</i> and <i>P. vulgaris</i>, along with a telomeric probe from <i>Arabidopsis thaliana</i> (L.) Heynh., were hybridized to <i>V. lasiocarpa</i> metaphase chromosomes to characterize <i>Vla</i>3, <i>Vla</i>7/5, and <i>Vla</i>9. Our findings revealed conserved oligo-FISH patterns on chromosomes 2, 6, 8, 10, and 11 between <i>V. unguiculata</i> and <i>V. lasiocarpa.</i> Paracentric and pericentric inversions were identified for <i>Vla</i>3 and <i>Vla</i>9, respectively. Our integrative approach revealed that the dysploid chromosome originated from an “end-to-end fusion” of homoeologous chromosomes 5 and 7. This is the first report on the chromosomal mechanisms underlying descending dysploidy in <i>Vigna</i>, providing new insights into the evolutionary dynamics of the genus.https://www.mdpi.com/2223-7747/14/12/1872oligo-FISH<i>Lasiospron</i>dysploid specieschromosome fusion |
| spellingShingle | Lazaro Serafim Jarbson Henrique Silva Sibelle Dias Ana Rafaela da Silva Oliveira Maria Clara Nunes Antônio Félix da Costa Ana Maria Benko-Iseppon Jiming Jiang Lívia do Vale Martins Ana Christina Brasileiro-Vidal “End-to-End Chromosome Fusion” as the Main Driver of Descending Dysploidy in <i>Vigna lasiocarpa</i> (Mart. ex Benth.) Verdc. (Leguminosae Juss.) Plants oligo-FISH <i>Lasiospron</i> dysploid species chromosome fusion |
| title | “End-to-End Chromosome Fusion” as the Main Driver of Descending Dysploidy in <i>Vigna lasiocarpa</i> (Mart. ex Benth.) Verdc. (Leguminosae Juss.) |
| title_full | “End-to-End Chromosome Fusion” as the Main Driver of Descending Dysploidy in <i>Vigna lasiocarpa</i> (Mart. ex Benth.) Verdc. (Leguminosae Juss.) |
| title_fullStr | “End-to-End Chromosome Fusion” as the Main Driver of Descending Dysploidy in <i>Vigna lasiocarpa</i> (Mart. ex Benth.) Verdc. (Leguminosae Juss.) |
| title_full_unstemmed | “End-to-End Chromosome Fusion” as the Main Driver of Descending Dysploidy in <i>Vigna lasiocarpa</i> (Mart. ex Benth.) Verdc. (Leguminosae Juss.) |
| title_short | “End-to-End Chromosome Fusion” as the Main Driver of Descending Dysploidy in <i>Vigna lasiocarpa</i> (Mart. ex Benth.) Verdc. (Leguminosae Juss.) |
| title_sort | end to end chromosome fusion as the main driver of descending dysploidy in i vigna lasiocarpa i mart ex benth verdc leguminosae juss |
| topic | oligo-FISH <i>Lasiospron</i> dysploid species chromosome fusion |
| url | https://www.mdpi.com/2223-7747/14/12/1872 |
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