Meiotic behaviour during pachytene and diakinesis of Isognomon alatus (Molusca-Isognomonidae) from Veracruz, Mexico
Previous studies on the mitotic chromosomes of three populations of Isognomon alatus from different localities along the Gulf of Mexico revealed chromosome polymorphism and differences in the diploid number. In this study, an analysis of the meiotic behaviour of I. alatus from Veracruz, Mexico, has...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Universidad Autónoma de Baja California
1991-03-01
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| Series: | Ciencias Marinas |
| Online Access: | http://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/781 |
| _version_ | 1797278729732358144 |
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| author | F Rodríguez-Romero M Gasca-Montes de Oca J De la Rosa-Vélez |
| author_facet | F Rodríguez-Romero M Gasca-Montes de Oca J De la Rosa-Vélez |
| author_sort | F Rodríguez-Romero |
| collection | DOAJ |
| description |
Previous studies on the mitotic chromosomes of three populations of Isognomon alatus from different localities along the Gulf of Mexico revealed chromosome polymorphism and differences in the diploid number. In this study, an analysis of the meiotic behaviour of I. alatus from Veracruz, Mexico, has been carried out in order to obtain complementary information to the knowledge of the cytogenetics of this species. Our results indicate complementary homologous chromosomes during pachytene and 14 symmetric chiasmated bivalents during diakinesis. No sexual chromosomes were identified. There was no evidence of chromosome polymorphism nor intrapopulation alterations of the diploid number.
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| first_indexed | 2024-03-07T16:12:28Z |
| format | Article |
| id | doaj.art-e993a11ee2fa472695014d9379535f18 |
| institution | Directory Open Access Journal |
| issn | 0185-3880 2395-9053 |
| language | English |
| last_indexed | 2024-03-07T16:12:28Z |
| publishDate | 1991-03-01 |
| publisher | Universidad Autónoma de Baja California |
| record_format | Article |
| series | Ciencias Marinas |
| spelling | doaj.art-e993a11ee2fa472695014d9379535f182024-03-04T16:44:09ZengUniversidad Autónoma de Baja CaliforniaCiencias Marinas0185-38802395-90531991-03-0117110.7773/cm.v17i1.781Meiotic behaviour during pachytene and diakinesis of Isognomon alatus (Molusca-Isognomonidae) from Veracruz, MexicoF Rodríguez-Romero0M Gasca-Montes de Oca1J De la Rosa-Vélez2Universidad Nacional Autónoma de MéxicoUniversidad Nacional Autónoma de MéxicoUniversidad Autónoma de Baja California Previous studies on the mitotic chromosomes of three populations of Isognomon alatus from different localities along the Gulf of Mexico revealed chromosome polymorphism and differences in the diploid number. In this study, an analysis of the meiotic behaviour of I. alatus from Veracruz, Mexico, has been carried out in order to obtain complementary information to the knowledge of the cytogenetics of this species. Our results indicate complementary homologous chromosomes during pachytene and 14 symmetric chiasmated bivalents during diakinesis. No sexual chromosomes were identified. There was no evidence of chromosome polymorphism nor intrapopulation alterations of the diploid number. http://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/781 |
| spellingShingle | F Rodríguez-Romero M Gasca-Montes de Oca J De la Rosa-Vélez Meiotic behaviour during pachytene and diakinesis of Isognomon alatus (Molusca-Isognomonidae) from Veracruz, Mexico Ciencias Marinas |
| title | Meiotic behaviour during pachytene and diakinesis of Isognomon alatus (Molusca-Isognomonidae) from Veracruz, Mexico |
| title_full | Meiotic behaviour during pachytene and diakinesis of Isognomon alatus (Molusca-Isognomonidae) from Veracruz, Mexico |
| title_fullStr | Meiotic behaviour during pachytene and diakinesis of Isognomon alatus (Molusca-Isognomonidae) from Veracruz, Mexico |
| title_full_unstemmed | Meiotic behaviour during pachytene and diakinesis of Isognomon alatus (Molusca-Isognomonidae) from Veracruz, Mexico |
| title_short | Meiotic behaviour during pachytene and diakinesis of Isognomon alatus (Molusca-Isognomonidae) from Veracruz, Mexico |
| title_sort | meiotic behaviour during pachytene and diakinesis of isognomon alatus molusca isognomonidae from veracruz mexico |
| url | http://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/781 |
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