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Books > Science & Mathematics > Biology, life sciences > Zoology & animal sciences > Invertebrates > Insects (entomology)
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Karyotypes of Parasitic Hymenoptera (Paperback, Softcover reprint of the original 1st ed. 2009)
Loot Price: R4,348
Discovery Miles 43 480
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Karyotypes of Parasitic Hymenoptera (Paperback, Softcover reprint of the original 1st ed. 2009)
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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.
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