ArticleJournal of molecular evolution1996
Distribution and evolution of introns in Drosophila amylase genes.
Article in Journal of molecular evolution, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 29 citations in OpenAlex.
- Molecular, Biochemical, and Dietary Regulation Features of α-Amylase in a Carnivorous Crustacean, the Spiny Lobster Panulirus argus.PloS one · 2016Article
- α-Amylase: an enzyme specificity found in various families of glycoside hydrolases.Cellular and molecular life sciences : CMLS · 2014Review
- Gene make-up: rapid and massive intron gains after horizontal transfer of a bacterial α-amylase gene to Basidiomycetes.BMC evolutionary biology · 2013Article
- Characterization of maltase clusters in the genus Drosophila.Journal of molecular evolution · 2011Article
- Phylogenetic distribution of intron positions in alpha-amylase genes of bilateria suggests numerous gains and losses.PloS one · 2011Article
- A nested alpha-amylase gene in Drosophila ananassae.Journal of molecular evolution · 2003Article
- Evolution of the AMP-forming acetyl-CoA synthetase gene in the Drosophilidae family.Journal of molecular evolution · 2003Article
- Article
- Amyrel, a paralogous gene of the amylase gene family in Drosophila melanogaster and the Sophophora subgenus.Proceedings of the National Academy of Sciences of the United States of America · 1998Article
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
While the two amylase genes of Drosophila melanogaster are intronless, the three genes of D. pseudoobscura harbor a short intron. This raises the question of the common structure of the Amy gene in Drosophila species. We have investigated the presence or absence of an intron in the amylase genes of 150 species of Drosophilids. Using polymerase chain reaction (PCR), we have amplified a region that surrounds the intron site reported in D. pseudoobscura and a few other species. The results revealed that most species contain an intron, with a variable size ranging from 50 to 750 bp, although the very majoritary size was around 60-80 bp. Several species belonging to different lineages were found to lack an intron. This loss of intervening sequence was likely due to evolutionarily independent and rather frequent events. Some other species had both types of genes: In the obscura group, and to a lesser extent in the ananassae subgroup, intronless copies had much diverged from intron-containing genes. Base composition of short introns was found to be variable and correlated with that of the surrounding exons, whereas long introns were all A-T rich. We have extended our study to non-Drosophilid insects. In species from other orders of Holometaboles, Lepidoptera and Hymenoptera, an intron was found at an identical position in the Amy gene, suggesting that the intron was ancestral.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.