Nonrandom sexual reproduction and diapausing egg production in a Daphnia hybrid species complex
نویسندگان
چکیده
منابع مشابه
From Diapause to Sexual Reproduction Evolutionary Ecology of the Hybrid Complex from Lake Constance Daphnia
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Cyclic parthenogenesis (heterogony) is a widespread reproductive mode found in diverse taxa such as digenean trematodies, gall wasps, gall midges, aphids, cladocerans and rotifers. It is of particular interest as it combines the advantages of asexual reproduction (rapid population growth) and sexual reproduction (recombination). Usually sexual reproduction is initiated when or slightly before e...
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1 Departamento de Biologia Celular, Universidade de Brası́lia (UnB), Brası́lia, Brazil, 2 Departamento de Biologia Celular e Genética, Universidade Federal do Rio Grande do Norte (UFRN), Natal, Brazil, 3 Centro de Microbiologı́a y Biologı́a Celular, Instituto Venezolano de Investigaciones Cientı́ficas (IVIC), Caracas, Venezuela, 4 Departamento de Microbiologia e Imunologia, Universidade Estadual Pau...
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Recent studies on the life histories of Daphnia hybrids and their parental species have revealed that hybrids can combine an intermediate size with a relatively high reproductive rate, which might explain their success in many European lakes. Based on this information, we formulated the temporal hybrid superiority hypothesis to explain the coexistence of parental species and their hybrids. Our ...
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Seasonal dynamics of the abundance, sexual reproduction and genetic architecture in a Daphnia hyalina-galeata hybrid complex were studied in the large and deep Lake Constance. We found evidence for the occurrence of first and second order hybridization. Our study revealed strong differences between the parental species not only regarding their seasonal dynamics, genetic architecture and diversi...
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ژورنال
عنوان ژورنال: Limnology and Oceanography
سال: 2004
ISSN: 0024-3590
DOI: 10.4319/lo.2004.49.4_part_2.1393