THE CONTROL OF REPRODUCTION IN DIPLOPTERA PUNCTATA (BLATTARIA)
نویسندگان
چکیده
منابع مشابه
Social influences on nymphal development in the cockroach, Diploptera punctata
Solitary male nymphs of the cockroach Diploptera punctata (Eschscholtz) (Blattaria: Blaberidae) took significantly longer to reach adulthood than males paired with either a male or female nymph or grouped with four other male nymphs since birth. When isolated throughout nymphal development, 15.8% of males passed through 3 stadia before adult eclosion, and the remainder went through 4 stadia. In...
متن کاملIdentification and characterization of the NMDA receptor and its role in regulating reproduction in the cockroach Diploptera punctata.
The NMDA receptor (NMDAR) plays important roles in excitatory neurotransmission and in the regulation of reproduction in mammals. NMDAR in insects comprises two subunits, NR1 and NR2. In this study, we identified two NR1 paralogs and eleven NR2 alternatively spliced variants in the cockroach Diploptera punctata. This is the first report of NR1 paralogs in insects. The tissue distributions and e...
متن کاملEndocrine and reproductive differences and genetic divergence in two populations of the cockroach Diploptera punctata.
The viviparous cockroach, Diploptera punctata, has been a valuable model organism for studies of the regulation of reproduction by juvenile hormone (JH) in insects. As a result of its truly viviparous mode of reproduction, precise regulation of JH biosynthesis and reproduction is required for production of offspring, providing a model system for the study of the relationship between JH producti...
متن کاملCharacterization of the Juvenile Hormone Pathway in the Viviparous Cockroach, Diploptera punctata
Juvenile hormones (JHs) are key regulators of insect development and reproduction. The JH biosynthetic pathway is known to involve 13 discrete enzymatic steps. In the present study, we have characterized the JH biosynthetic pathway in the cockroach Diploptera punctata. The effect of exogenous JH precursors on JH biosynthesis was also determined. Based on sequence similarity, orthologs for the g...
متن کاملNeural and hormonal regulation of growth of corpora allata in the cockroach, Diploptera punctata.
DNA synthesis and mitosis in the corpora allata (CA) of adult Diploptera punctata males were investigated with total cell count after 5'-bromo-2'-deoxyuridine immunodetection and colchicine arrestment both in vivo and in vitro. The CA exhibited a single wave of DNA synthesis followed by cell division during the first 4 days after the imaginal ecdysis. A second mitotic wave was experimentally in...
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ژورنال
عنوان ژورنال: The Biological Bulletin
سال: 1959
ISSN: 0006-3185,1939-8697
DOI: 10.2307/1538949