Reproduction, Asexual
Origin of Asexual Reproduction in Hydra
... b) Hydra routinely produces excess cells that move toward and accumulate in the budding region. One of Hydra’s attraction to biologists is that under optimal laboratory conditions, hydra cultures expand exponentially. ...
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Innovative Approach of Asexual Reproduction Induction in Holothuria polii (Delle Chiaje, 1824)
... (30 samples), EV (90 samples), and NEV (90 samples) groups. Samples of the eviscerated group (EV) were induced to eviscerate by injection of 0.5 ml of 0.45M KCI into the perivisceral coelomic cavity as described by Byrne ...
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Transmission rates of the bacterial endosymbiont, Neorickettsia risticii, during the asexual reproduction phase of its digenean host, Plagiorchis elegans, within naturally infected lymnaeid snails
... and asexual reproductive phases of the ...involving asexual reproduction in mol- lusks (=first intermediate host) and sexual reproduction in vertebrates (=definitive host) (Figure ...
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Partial maintenance of organ specific epigenetic marks during plant asexual reproduction leads to heritable phenotypic variation
... during asexual reproduction and the implications for clonal progeny remain ...during asexual propagation from somatic cells in which a zygotic program is artificially ...sexual reproduction, ...
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Mating Type Protein Mat1-2 from Asexual Aspergillus fumigatus Drives Sexual Reproduction in Fertile Aspergillus nidulans
... between asexual Bipolaris sacchari and heterothallic Cochliobolus heterostrophus, between homothallic Sordaria macrospora and heterothallic Podospora anserina, and between heterothallic Neurospora crassa and ...
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Plant germline formation: common concepts and developmental flexibility in sexual and asexual reproduction
... sexual reproduction (see Glossary, Box 1), sperm cells fuse with both the egg and the central cell in the process of double fertilization, giving rise to the embryo and endosperm, respectively, the major ...
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The optimal balance between sexual and asexual reproduction in variable environments: a systematic review
... Perennial plants with vegetative propagule tend to have more asexual reproduction in fertile soil. Con- versely, annual and perennial plants with chasmogamy and cleistogamy tend to have more sexual ...
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The planarian P2X homolog in the regulation of asexual reproduction
... on body length; in other words, dependent on the growth of body size. The first phenotype observed in DjP2X-A(RNAi) was increased fission frequency (Fig. 3). Indeed, DjP2X-A(RNAi) animals pro- duced by feeding dsRNA had ...
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Structure Learning in Bayesian Networks Using Asexual Reproduction Optimization
... A plant continues to grow throughout its life. The rapidly growing tips of roots and stems contain specialized reproductive cells called meristem. At a certain time these cells will be diverted into cells that make up ...
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The HEX1 Gene of Fusarium graminearum Is Required for Fungal Asexual Reproduction and Pathogenesis and for Efficient Viral RNA Accumulation of Fusarium graminearum Virus 1
... The accumulation of viral RNA depends on many host cellular factors. The hexagonal peroxisome (Hex1) protein is a fungal pro- tein that is highly expressed when the DK21 strain of Fusarium graminearum virus 1 (FgV1) ...
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Kingdom Fungi Teacher Powerpoint
... • Asexual reproduction Asexual reproduction requires one organism requires one organism that produces haploid (.. that produces haploid ( n n ) spores by mitosis. ) spores by mitosis.[r] ...
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Relationship of Intracellular Potassium to Asexual Reproduction in Hydra
... Since a decrease in growth rate was noted when potassium concentration was increased above that in normal culture medium Table 1, we measured intracellular potassium and the effect of ou[r] ...
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A Comparison of the Growth and Asexual Reproduction by Cryphonectria parasitica Isolates Infected with Hypoviruses CHV3 County Line, CHV1 Euro7, and CHV1 Ep713
... To assess hypovirus transmission to asexual conidia, single conidial cultures were obtained from the pycnidia of field cankers (in vivo) and from isolates cultured on PDA (in vitro). To do this, a small amount of ...
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Evolution of ethnocentrism on undirected and directed Barabási-Albert networks
... and reproduction among computational agents are simulated on undirected and directed Barab´ asi- Albert (BA) ...both asexual and sexual reproduction ...of reproduction, ethnocen- tric strategy ...
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Why sex? and why only in pairs?
... Abstract. Understanding the purpose of sex remains one of the most important un- resolved problems in evolutionary biology. The di¢ culty is not that there are too few theories of sex, the di¢ culty is that there are too ...
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Investigation of Learning Outcomes in Biology Course Curriculum in Terms of Mental Skills
... Evaluation of learning outcomes in the tenth-grade biology course curriculum in terms of Reflective Thinking Skills Unit.. Subject Mitosis and Asexual Reproduction Meiosis and Sexual Rep[r] ...
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Compensatory Evolution and the Origins of Innovations
... Below we discuss the first two key assumptions—asexual reproduction and adaptation from de novo mutations—in more detail. First, consider our assumption of asexual re- production. Our results rely ...
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The Effective Size of Mixed Sexually and Asexually Reproducing Populations
... NIPARENTAL reproduction by either asexual re- of finite populations (Crow and Kimura 1970; Hartl production or self-fertilization would be vitally im- and Clark 1989; Caballero 1994; Wang and Cabal- portant ...
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Why sex? and why only in pairs?
... In the remainder of this section we present a highly simpli…ed red queen model that captures the features described above and that gives an overwhelming ad- vantage to biparental sex over asexual ...
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Genetic differentiation, reproductive mode, and gene flow in the brooding coral pocillopora damicornis along the Great Barrier Reef, Australia
... This is the first large-scale survey of genetic vari- 177 ation in any coral, with the following objectives: 1 to establish the relative contribution of sexual and asexual reproduction t[r] ...
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