By Diter von Wettstein (auth.), Professor Dr.Dr.h.c. mult. K. Esser, Professor Dr. U. Lüttge, Professor Dr. W. Beyschlag, Professor Dr. J. Murata (eds.)
With one quantity every year, this sequence retains scientists and complicated scholars educated of the most recent advancements and leads to all parts of the plant sciences.
The current quantity comprises stories on genetics, telephone biology, body structure, comparative morphology, systematics, ecology, and plants science.
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Bugs are nice school room examine organisms. they're effortless to gather and lift and feature a desirable array of existence histories. simply because they're small and feature super reproductive skill ecological stories of dispersion, predation, parasitism and copy could be studied in compressed timeframes and small parts relative to comparable stories of bigger organisms.
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Extra info for Progress in Botany
Non-homologous pairing was recognized by McClintock (1933) in pachytene nuclei containing unbalanced or structurally heterozygous chromosome complements, and was also shown to occur in normal sporocytes. Synaptonemal complexes of normal size have indeed been found early on in non-homologously paired chromosomes or chromosome segments in haploid tomato, petunia, snapdragon, barley and wheat or in foldback paired univalent chromosome segments. Such non-homologously paired regions do not give rise, however, to chiasmata or translocations.
In: Schweiger HG (ed) International cell biology 1980–1981. Springer, Berlin Heidelberg New York, pp 250–272 Wettstein D von (1983) Genetic engineering in the adaptation of plants to evolving human needs. Experientia 39:687–713 Wettstein D von (1984) The synaptonemal complex and genetic segregation. Symp Soc Exp Biol 38:195–231 28 Review Wettstein D von (2000a) Chlorophyll biosynthesis. I. From analysis of mutants to genetic engineering of the pathway. In: Kung S-D, Yang S-F (eds) Discoveries in plant biology, vol 3.
4. In classic cytological analyses, chromosome and bivalent interlocking was considered a rare accident that could be increased in frequency by treating meiocytes with various physical and chemical agents; in hindsight this was an erroneous conclusion derived from studies of diplotene to metaphase I stages. If zygotene is analysed by three-dimensional reconstruction from serial sections, both chromosome and bivalent interlockings are frequently encountered with a frequency of four per nucleus. They are resolved by chromosome breakage and precise reunion of the broken ends prior to pachytene.