NDLI: Molecular and genetic organization of Drosophila melanogasterpolytene chromosomes: evidence for two types of interband regions

Content Provider	Springer Nature Link
Author	Demakov, Sergei Gortchakov, Andrei Schwartz, Yuri Semeshin, Valery Campuza, Sonsoles Modolell, Juan Zhimulev, Igor
Copyright Year	2004
Abstract	The 3A and 60E regions of Drosophila melanogaster polytene chromosomes containing inserted copies of the P{lArB} transposon have been subjected to an electron microscopic (EM) analysis. We show that both inserts led to formation of new bands within the interband regions 3A4/A6 and 60E8-9/E10. This allowed us to clone DNA of these interbands. Their sequences, as well as those of DNA from other four interbands described earlier, have been analyzed. We have found that, with the exception of 60E8-9/E10 interband, all other five regions under study corresponded to 5' or 3' ends of genes. We have further obtained the evidence for 60E8-9/E10 interband to harbor the 'housekeeping' RpL19 gene, which is transcribed in many tissues, including salivary glands. Based upon the genetic heterogeneity of the interbands observed a revised model of polytene chromosome organization is discussed.
Starting Page	311
Ending Page	324
Page Count	14
File Format	PDF
ISSN	00166707
Journal	Genetica
Volume Number	122
Issue Number	3
e-ISSN	15736857
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2004-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Human Genetics Microbial Genetics and Genomics Animal Genetics and Genomics
Content Type	Text
Resource Type	Article
Subject	Genetics Plant Science Medicine Animal Science and Zoology Insect Science

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