Host specialization
WebMar 21, 2024 · The cotton aphid, Aphis gossypii Glover, is a species of polyphagous aphid with many biotypes, and its host transfer has always been the focus of research on the control of cotton aphid. An important factor affecting aphid specialization is the nutritional association with microbial symbionts that provide the host with nutrients lacking in the ... WebFeb 17, 2011 · Here we provide robust evidence that the evolution of the gut symbiont Lactobacillus reuteri with vertebrates resulted in the emergence of host specialization. …
Host specialization
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WebFourthly, the green plants on which they feed they form al the great majority (99. 4%) of the agromyzid species most one half of all living species described so far. studied show a high degree of host specialization Secondly, their overwhelming majority shows very which makes these insects especially suitable for narrow host plant ... WebJan 18, 2024 · Host specialization: genetic analysis of populations from different crops in South America. The haplotype compositions of the specimens from different crops were compared to determine whether specialization of P. longifila had occurred on a specific host plant. The HD and nucleotide diversity (π) were estimated using DnaSP v5.
WebApr 6, 2024 · Host specialization is a key evolutionary process for the diversification and emergence of new pathogens. However, the molecular determinants of host range are poorly understood. Smut fungi are biotrophic pathogens that have distinct and narrow host ranges based on largely unknown genetic determinants. Hence, we aimed to expand … WebNov 9, 2024 · Through this greater specialization on a host type, new ecological niches will develop and biotypes become more reproductively isolated from each other. Even if some gene flow remains, host race formation is an important force that drives sympatric speciation (Butlin, 1987; Bush, 1994).
WebAug 3, 2024 · A six-state model of the evolution of host specialization revealed high transition rates between generalism and specialization in both decay modes. However, … WebJul 30, 2015 · Author Summary Zymoseptoria spp provides a unique model system to study the underlying genetics of host specialization of plant pathogens. Closely related Zymoseptoria species, including the prominent wheat pathogen Z. tritici, have recently specialized to distinct grass hosts. Positively selected substitutions have played a central …
WebMar 4, 2024 · Nature - A neurogenetic model, Drosophila sechellia—a relative of Drosophila melanogaster that has developed an extreme specialization for a single host plant—sheds …
WebMay 27, 2024 · Host specialization has long been hypothesized to explain the extraordinary diversity of phytophagous insects in the tropics. However, addressing this hypothesis has proved challenging because of the risk of … dropkey incWebJan 7, 2024 · Insect host-parasitoid interactions abound in nature and are characterized by a high degree of host specialization. In addition to their behavioral and immune defenses, many host species rely on heritable bacterial endosymbionts for defense against parasitoids. Studies on aphids and flies show that … drop kerb essex county councilWebOct 4, 2013 · The question of whether ticks are typically host specialists or host generalists has been subject to much debate over the last half-century. Indeed, early research … drop kerb application hertfordshire