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Data from: Impact of negative frequency-dependent selection on mating pattern and genetic structure: a comparative analysis of the S-locus and nuclear SSR loci in Prunus lannesiana var. speciosa
负责人:
关键词:
Prunus lannesiana var. speciosa;S-alleles;Negative frequency-dependent selection;SSR;self-incompatibility;Paternity;Prunus;Holocene
DOI:
doi:10.5061/dryad.7c425
摘要:
negative frequency-dependent selection (NFDS) were evaluated in Prunus lannesiana var. speciosa in comparison with nuclear simple sequence repeat (SSR) loci that seem
Data from: Microevolution of S-allele frequencies in wild cherry populations: respective impacts of negative frequency dependent selection and genetic drift
负责人:
关键词:
Genetic Variation;gene flow;Prunus avium;population genetics;Mating Systems;Models\/Simulations;Fecundity
DOI:
doi:10.5061/dryad.pk7v8
摘要:
Negative frequency dependent selection (NFDS) is supposed to be the main force controlling allele evolution at the game
Data from: Negative frequency-dependent selection is intensified at higher population densities in protist populations
负责人:
关键词:
diversity;Density-dependence;selection;frequency-dependence;plankton;Oxyrrhis marina
DOI:
doi:10.5061/dryad.nk52s
摘要:
negative frequency-dependent selection (NFDS) plays a role in the maintenance of diversity in the marine flagellate Oxyrrhis marina using competition experiments between multiple pairs
Data from: Inferring skeletal production from time-averaged assemblages: skeletal loss pulls the timing of production pulses towards the modern
负责人:
关键词:
Bioturbation;Amino acid racemization;Diagenesis;Radiocarbon;Bivalvia;Nuculana;Time averaging;Conservation paleobiology;Mollusca;Holocene;taphonomy;Pleistocene
DOI:
doi:10.5061/dryad.rv0k6
摘要:
and skeletal loss on postmortem age-frequency distributions (AFDs) to determine how to detect fluctuations in production over the recent past from AFDs. We sh
Data from: Leaf form and photosynthetic physiology of Dryopteris species distributed along light gradients in eastern North America
负责人:
关键词:
Comparative Methods;Dryopteris;hydraulics;photosynthetic light response;polyploidy;Ferns;transgressive trait expression;gas exchange;Holocene;light regimes
DOI:
doi:10.5061/dryad.38h06
摘要:
at high photon flux densities (PFDs) and by shade-associated species at low PFDs. 3.Field studies allow us to begin characterizing the range of native
Data from: Genetic architecture of resistance in Daphnia hosts against two species of host-specific parasites
负责人:
关键词:
Pasteuria ramosa;Hamiltosporidium tvaerminnensis;NFDS;Coevolution;QTL;host-parasite;Daphnia magna
DOI:
doi:10.5061/dryad.2260t
摘要:
Understanding the genetic architecture of host resistance is key for understanding the evolution of host–parasite interactions. Evolutionary models often assume simple genetics based on few loci and strong epistasis. It is unknown, however, whether these assumptions apply to natural populations. Using a quantitative trait loci (QTL) approach, we explore the genetic architecture of resistance in the crustacean Daphnia magna to two of its natural parasites: the horizontally transmitted bacterium Pasteuria ramosa and the horizontally and vertically transmitted microsporidium Hamiltosporidium tvaerminnensis. These two systems have become models for studies on the evolution of host–parasite interactions. In the QTL panel used here, Daphnia’s resistance to P. ramosa is controlled by a single major QTL (which explains 50% of the observed variation). Resistance to H. tvaerminnensis horizontal infections shows a signature of a quantitative trait based in multiple loci with weak epistatic interactions (together explaining 38% variation). Resistance to H. tvaerminnensis vertical infections, however, shows only one QTL (explaining 13.5% variance) that colocalizes with one of the QTLs for horizontal infections. QTLs for resistance to Pasteuria and Hamiltosporidium do not colocalize. We conclude that the genetics of resistance in D. magna are drastically different for these two parasites. Furthermore, we infer that based on these and earlier results, the mechanisms of coevolution differ strongly for the two host–parasite systems. Only the Pasteuria–Daphnia system is expected to follow the negative frequency-dependent selection (Red Queen) model. How coevolution works in the Hamiltosporidium–Daphnia system remains unclear.
Coleoptera of Togo: data of the LEA Insect Collection of the University of Lome
负责人:
Mondjonnesso Gomina;;Komina Amevoin;;Komina Amevoin;;Pando, Francisco;;Mondjonnesso Gomina
关键词:
FDS Togo University of Lome. Coleoptera Dataset LEA Collection of Insects Biodiversity Missahoe Taxa
DOI:
doi:10.15468/6nppyd
摘要:
ious ecosystems of Togo, such as forests and wetlands, are undergoing intensive degradation due to agricultural practices and rapid population growth (UICN

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