Abstract:
:In Drosophila gibberosa, differences between midgut and salivary gland chromosomes fall into two categories: tissue-specific band modulations which persist throughout the 90 h developmental period that we studied and tissue-specific puffs. Puffs that are common to both tissues tend to appear earlier in the midgut. Some major early ecdysteroid-induced puffs appear simultaneously in both tissues at the end of the third larval instar; however, the many late puffs that follow in the salivary glands are absent from the midgut. Intense puff activity in the early third larval instar midgut declines at the time of the hormonal pulse that initiates intense gene and secretory activity in salivary glands; the sloughing of midgut cells ensues.
journal_name
Chromosomajournal_title
Chromosomaauthors
Roberts PAdoi
10.1007/BF00292969subject
Has Abstractpub_date
1988-11-01 00:00:00pages
254-60issue
3eissn
0009-5915issn
1432-0886journal_volume
97pub_type
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