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Analysis of the Meiotic Segregation in Intergeneric Hybrids of Tilapias
المؤلفون المشاركون
Bezault, Etienne
Chevassus, Bernard
Baroiller, Jean-Francois
Clota, Frederic
Gharbi, Karim
Rognon, Xavier
المصدر
International Journal of Evolutionary Biology
العدد
المجلد 2012، العدد 2012 (31 ديسمبر/كانون الأول 2012)، ص ص. 1-10، 10ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2012-06-18
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
الملخص EN
Tilapia species exhibit a large ecological diversity and an important propensity to interspecific hybridisation.
This has been shown in the wild and used in aquaculture.
However, despite its important evolutionary implications, few studies have focused on the analysis of hybrid genomes and their meiotic segregation.
Intergeneric hybrids between Oreochromis niloticus and Sarotherodon melanotheron, two species highly differentiated genetically, ecologically, and behaviourally, were produced experimentally.
The meiotic segregation of these hybrids was analysed in reciprocal second generation hybrid (F2) and backcross families and compared to the meiosis of both parental species, using a panel of 30 microsatellite markers.
Hybrid meioses showed segregation in accordance to Mendelian expectations, independent from sex and the direction of crosses.
In addition, we observed a conservation of linkage associations between markers, which suggests a relatively similar genome structure between the two parental species and the apparent lack of postzygotic incompatibility, despite their important divergence.
These results provide genomics insights into the relative ease of hybridisation within cichlid species when prezygotic barriers are disrupted.
Overall our results support the hypothesis that hybridisation may have played an important role in the evolution and diversification of cichlids.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Bezault, Etienne& Rognon, Xavier& Clota, Frederic& Gharbi, Karim& Baroiller, Jean-Francois& Chevassus, Bernard. 2012. Analysis of the Meiotic Segregation in Intergeneric Hybrids of Tilapias. International Journal of Evolutionary Biology،Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-500512
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Bezault, Etienne…[et al.]. Analysis of the Meiotic Segregation in Intergeneric Hybrids of Tilapias. International Journal of Evolutionary Biology No. 2012 (2012), pp.1-10.
https://search.emarefa.net/detail/BIM-500512
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Bezault, Etienne& Rognon, Xavier& Clota, Frederic& Gharbi, Karim& Baroiller, Jean-Francois& Chevassus, Bernard. Analysis of the Meiotic Segregation in Intergeneric Hybrids of Tilapias. International Journal of Evolutionary Biology. 2012. Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-500512
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-500512
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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