Author: Rowland Willis Leiby
Publisher:
ISBN:
Category : Chalcididae
Languages : en
Pages : 102

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Book Description

Author: Miodrag Grbić
Publisher:
ISBN:
Category :
Languages : en
Pages : 370

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Author: Eric Harald Baehrecke
Publisher:
ISBN:
Category :
Languages : en
Pages : 380

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Book Description

Author: Kikuo Iwabuchi
Publisher: Springer Nature
ISBN: 9811509581
Category : Science
Languages : en
Pages : 209

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Book Description
This book provides an overview of our current understanding of polyembryony in insects. The study of polyembronic insects has advanced considerably over the last several decades.The book shows the exciting potential of polyembryonic insects and their impact on life sciences. It describes the mechanisms of polyembryogenesis; tissue-compatible invasion of the host, which is the first case of compatible cellular interaction between phylogenetically distant organisms without rejection; the sex differences in defense; and the environmental regulation of caste structure. The first book devoted to polyembryony in insects, it draws on the author’s research on polyembryonic wasps from 1990 to the present day, covering various topics such as polyembryogenesis in vitro, host-parasite interaction, sex differences in soldier function/humoral toxic factor, and the transcription analysis of polyembryogenesis.It is intended not only for researchers in the field of entomology, parasitology, ontogeny, reproductive biology, developmental biology, sociobiology, and evolutionary developmental biology (Evo-Devo), but also for postgraduate students in these fields.

Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 1736

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Author: Raymond Pearl
Publisher:
ISBN:
Category : Biology
Languages : en
Pages : 626

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Book Description
Includes section "New biological books" and other bibliographies.

Author: New York Entomological Society
Publisher:
ISBN:
Category : Electronic journals
Languages : en
Pages : 296

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Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 500

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Book Description

Author: Library of Congress. Catalog Division
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 250

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Book Description

Author: Vladimir E. Gokhman
Publisher: Springer Science & Business Media
ISBN: 1402098073
Category : Science
Languages : en
Pages : 192

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Book Description
Not so long ago, karyology was considered a vanguard biological discipline, which could solve nearly all problems of systematics and phylogenetics. We liked to believe in the bright future, in a magician who will appear like a Jack-in-the-box and reveal the truth to us. However, excessive hopes related to the chromosomal study came true only in part. In the meantime, new candidates claimed the place of the magician, i. e. phenetics succeeded by cladistics and now by molecular methods in systematics and phylogeny. Nevertheless, it becomes progressively more ob- ous nowadays that cladistics is just a bright envelope for the fairly primitive and theoretically vulnerable approach that deprives living organisms and their groups of the traces of integrity and reduces them to the plain sum of characters. Modern molecular techniques look more perceptive and may yield more reliable results, although the details are sometimes embarrassing, and comparison with the fossil record does not necessarily reveal their superiority over cladistics. These methods are accessible by research teams with massive funding and good equipment and this strongly decreases the range and diversity of the material studied. However, classi?cations are often created by individual systematists with the restricted access to molecular methods. In this context, karyological techniques are in the preferable position, although they certainly do not provide direct and immaculate markers of taxonomic and p- logenetic relationships: chromosomal study is a morphological method with all its advantages and drawbacks.