دورية أكاديمية
The deep conservation of the Lepidoptera Z chromosome suggests a non-canonical origin of the W
| العنوان: | The deep conservation of the Lepidoptera Z chromosome suggests a non-canonical origin of the W |
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| المؤلفون: | Fraïsse, Christelle, Picard, Marion, a L, Vicoso, Beatriz |
| المساهمون: | Institute of Science and Technology Klosterneuburg, Austria (IST Austria) |
| المصدر: | ISSN: 2041-1723. |
| بيانات النشر: | HAL CCSD Nature Publishing Group |
| سنة النشر: | 2017 |
| المجموعة: | Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
| مصطلحات موضوعية: | Sex chromosome evolution, ZW species, Lepidoptera, Comparative genomics, [SDV]Life Sciences [q-bio] |
| الوصف: | International audience ; Moths and butterflies (Lepidoptera) usually have a pair of differentiated WZ sex chromosomes. However, in most lineages outside of the division Ditrysia, as well as in the sister order Trichoptera, females lack a W chromosome. The W is therefore thought to have been acquired secondarily. Here we compare the genomes of three Lepidoptera species (one Dytrisia and two non-Dytrisia) to test three models accounting for the origin of the W: (1) a Z-autosome fusion; (2) a sex chromosome turnover; and (3) a non-canonical mechanism (e.g., through the recruitment of a B chromosome). We show that the gene content of the Z is highly conserved across Lepidoptera (rejecting a sex chromosome turnover) and that very few genes moved onto the Z in the common ancestor of the Ditrysia (arguing against a Zautosome fusion). Our comparative genomics analysis therefore supports the secondary acquisition of the Lepidoptera W by a non-canonical mechanism, and it confirms the extreme stability of well-differentiated sex chromosomes. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | hal-03821394; https://hal.science/hal-03821394Test; https://hal.science/hal-03821394/documentTest; https://hal.science/hal-03821394/file/Fraisse_2017_NatCom.pdfTest |
| DOI: | 10.1038/s41467-017-01663-5 |
| الإتاحة: | https://doi.org/10.1038/s41467-017-01663-5Test https://hal.science/hal-03821394Test https://hal.science/hal-03821394/documentTest https://hal.science/hal-03821394/file/Fraisse_2017_NatCom.pdfTest |
| حقوق: | info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.A6267BAB |
| قاعدة البيانات: | BASE |
| DOI: | 10.1038/s41467-017-01663-5 |
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