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Evolutionary History of Lake Tanganyika’s Predatory Deepwater Cichlids
المؤلفون المشاركون
Kirchberger, Paul C.
Sefc, Kristina M.
Koblmuller, Stephan
Sturmbauer, Christian
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
2012-05-17
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
الملخص EN
Hybridization among littoral cichlid species in Lake Tanganyika was inferred in several molecular phylogenetic studies.
The phenomenon is generally attributed to the lake level-induced shoreline and habitat changes.
These allow for allopatric divergence of geographically fragmented populations alternating with locally restricted secondary contact and introgression between incompletely isolated taxa.
In contrast, the deepwater habitat is characterized by weak geographic structure and a high potential for gene flow, which may explain the lower species richness of deepwater than littoral lineages.
For the same reason, divergent deepwater lineages should have evolved strong intrinsic reproductive isolation already in the incipient stages of diversification, and, consequently, hybridization among established lineages should have been less frequent than in littoral lineages.
We test this hypothesis in the endemic Lake Tanganyika deepwater cichlid tribe Bathybatini by comparing phylogenetic trees of Hemibates and Bathybates species obtained with nuclear multilocus AFLP data with a phylogeny based on mitochondrial sequences.
Consistent with our hypothesis, largely congruent tree topologies and negative tests for introgression provided no evidence for introgressive hybridization between the deepwater taxa.
Together, the nuclear and mitochondrial data established a well-supported phylogeny and suggested ecological segregation during speciation.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Kirchberger, Paul C.& Sefc, Kristina M.& Sturmbauer, Christian& Koblmuller, Stephan. 2012. Evolutionary History of Lake Tanganyika’s Predatory Deepwater Cichlids. International Journal of Evolutionary Biology،Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-492881
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Kirchberger, Paul C.…[et al.]. Evolutionary History of Lake Tanganyika’s Predatory Deepwater Cichlids. International Journal of Evolutionary Biology No. 2012 (2012), pp.1-10.
https://search.emarefa.net/detail/BIM-492881
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Kirchberger, Paul C.& Sefc, Kristina M.& Sturmbauer, Christian& Koblmuller, Stephan. Evolutionary History of Lake Tanganyika’s Predatory Deepwater Cichlids. International Journal of Evolutionary Biology. 2012. Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-492881
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-492881
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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