Variation in the Number of Sperm Transferred During Mating by the Male Colorado Potato Beetle (Leptinotarsa Decemlineata) PDF Download

Author: Meghan G. Radtke
Publisher:
ISBN:
Category : Colorado potato beetle
Languages : en
Pages : 70

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Author: Mandla Mpho
Publisher: National Library of Canada = Bibliothèque nationale du Canada
ISBN: 9780612110915
Category : Colorado potato beetle
Languages : en
Pages : 158

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Author: Damon Mathew Orsetti
Publisher:
ISBN:
Category : Colorado potato beetle
Languages : en
Pages : 102

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Author: Raymond J.C. Cannon
Publisher: CABI
ISBN: 1789248604
Category : Science
Languages : en
Pages : 658

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Book Description
This book explores mate-finding and courtship behaviour in the insect world, in all its subtlety and diversity. Insects engage in courtship as much, or as little, as any other animal; they have songs and dances, and all manner of instruments and ornaments to attract and court the opposite sex. Insects have evolved complex chemical and acoustic communication systems, sending fragrant messages, visual signals and subtle vibrations to attract and persuade. Insects also have many different ways and means of choosing or rejecting mating partners. This beautifully illustrated book shows the incredible variety of courtship behaviours and celebrates the wonderful natural history of a wide range of insects. Varieties of courtship can occur before, during and even after copulation, and numerous examples of the different mating strategies used are presented. This landmark volume will be of interest to students of biology, entomologists, naturalists and anyone with a desire to know more about the love lives of the small creatures with which we share the planet.

Author: Göran Arnqvist
Publisher: Princeton University Press
ISBN: 1400850606
Category : Science
Languages : en
Pages : 345

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The past decade has seen a profound change in the scientific understanding of reproduction. The traditional view of reproduction as a joint venture undertaken by two individuals, aimed at replicating their common genome, is being challenged by a growing body of evidence showing that the evolutionary interests of interacting males and females diverge. This book demonstrates that, despite a shared genome, conflicts between interacting males and females are ubiquitous, and that selection in the two sexes is continuously pulling this genome in opposite directions. These conflicts drive the evolution of a great variety of those traits that distinguish the sexes and also contribute to the diversification of lineages. Göran Arnqvist and Locke Rowe present an array of evidence for sexual conflict throughout nature, and they set these conflicts into the well-established theoretical framework of sexual selection. The recognition of conflict between the sexes is transforming our theories for the evolution of mating systems and the sexes themselves. Written by two top researchers in the field, Sexual Conflict is the first book to describe this transformation. It is a must read for all scholars and students interested in the evolutionary biology of reproduction.

Author:
Publisher:
ISBN:
Category : Zoology
Languages : en
Pages : 1194

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Author: David Matthew Lansky
Publisher:
ISBN:
Category : Colorado potato beetle
Languages : en
Pages : 182

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Author: Michael Alan Edwards
Publisher:
ISBN:
Category : Colorado potato beetle
Languages : en
Pages : 164

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Author: Natalie Kaiser
Publisher:
ISBN:
Category : Electronic dissertations
Languages : en
Pages : 471

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Book Description
The Colorado potato beetle (Leptinotarsa decemlineata) is the most widespread and destructive insect defoliator pest of potato and its control has historically been achieved through the use of insecticide. The diploid potato species Solanum chacoense has been utilized for over four decades in an attempt to introgress glycoalkaloid-based insect resistance into cultivated tetraploid potato. Despite these efforts, insect resistant cultivars have not been achieved, due in part to the complex genetics underlying the trait. The creation of inbred diploid lines would allow more efficient examination and deployment of this economically important trait. We introduced self-compatibility into diploid insect resistant S. chacoense germplasm and developed the first potato recombinant inbred line (RIL) population to study, understand and deploy this mechanism of host-plant insect resistance in cultivated, diploid breeding lines.We first examined the genetic features underlying leptine glycoalkaloid mediated Colorado potato beetle host plant resistance in the F2 generation derived from a cross between S. chacoense lines USDA8380-1 (80-1) and M6. Using biparental linkage mapping, a major overlapping QTL region with dominant effects was identified on chromosome 2 explaining 49.3% and 34.1% of the variance in Colorado potato beetle field resistance and leptine accumulation, respectively. Bulk segregant whole genome sequencing of the same F2 population detected QTL associated with Colorado potato beetle resistance on chromosomes 2, 4, 6, 7, and 12. Candidate genes within these QTL regions were identified by weighted gene co-expression network analysis of parental lines and resistant and susceptible F2 individuals.Second, we exploited M6-mediated self-compatibility and established vigorous, F5 inbred diploid lines to further examine loci associated with Colorado potato beetle resistance and explore the practicality of inbreeding in diploid potato. F5 inbred lines carrying Colorado potato beetle resistance equivalent to the resistant donor parent were created without field selection during the inbreeding process. We report that the ratio of acetylated to non-acetylated glycoalkaloids measured under greenhouse conditions is a powerful metabolite marker to predict field performance without incurring the costs of conducting a Colorado potato beetle field trial. Leptine production was successfully introduced into diploid breeding germplasm. Single nucleotide polymorphism (SNP) genotyping coupled with stylar analysis of pollen tube growth and self-fertility phenotyping of the F4 and F5 generations revealed that multiple factors mediate the self-compatible response in this RIL population.Third, we assessed the initial transcriptional and metabolite response to Colorado potato beetle herbivory in beetle resistant and beetle susceptible S. chacoense lines over a 48-hour time course. To facilitate genome editing modification of the leptine biosynthesis pathway, we characterized the allelic variation between S. chacoense 80-1 and M6 in a candidate leptine biosynthesis gene identified by transcriptional profiling.This work highlights the challenges of establishing inbred germplasm, reinforces the complexity of selecting for self-fertility in diploid potato, and lays the foundation for optimization of potato RIL development. The availability of highly homozygous Colorado potato beetle resistant lines will enable further genomic inquiry of the loci contributing to this trait and will facilitate rapid deployment of beetle resistant diploid potato varieties.

Author:
Publisher:
ISBN:
Category : Entomology
Languages : en
Pages : 938

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Book Description
Monthly, with annual author and subject indexes. Abstracts from about 2750 primary journals dealing with the subject of insects. Arranged in classified order. Entries include titles given or translated into English, authors, addresses offirst authors, and abstracts; all insects cited in the abstracts are identified by scientific family names. Each monthly issue has Index to classes and orders, Author index.