Comparison of the chicken and zebra finch Z chromosomes shows evolutionary rearrangements
| Autor: | Kathy Kampf, Yuichiro Itoh, Arthur P. Arnold |
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| Rok vydání: | 2006 |
| Předmět: |
Male
Chromosomes Artificial Bacterial animal structures Lineage (genetic) Genetics medicine Animals Gene Zebra finch reproductive and urinary physiology In Situ Hybridization Fluorescence Repetitive Sequences Nucleic Acid Gene Rearrangement Bacterial artificial chromosome Z chromosome Sex Chromosomes medicine.diagnostic_test biology biology.organism_classification Physical Chromosome Mapping Biological Evolution W chromosome nervous system behavior and behavior mechanisms Female Finches Chickens Taeniopygia Fluorescence in situ hybridization |
| Zdroj: | Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology. 14(8) |
| ISSN: | 0967-3849 |
| Popis: | Using fluorescent in-situ hybridization (FISH) of zebra finch (Taeniopygia guttata) bacterial artificial chromosome (BAC) clones, we determined the chromosomal localizations of 14 zebra finch genes that are Z-linked in chickens: ATP5A1, CHD1, NR2F1, DMRT1, PAM, GHR, HSD17B4, NIPBL, ACO1, HINT1, SMAD2, SPIN, NTRK2 and UBE2R2. All 14 genes also map to the zebra finch Z chromosome, indicating substantial conservation of gene content on the Z chromosome in the two avian lineages. However, the physical order of these genes on the zebra finch Z chromosome differed from that of the chicken, in a pattern that would have required several inversions since the two lineages diverged. Eight of 14 zebra finch BAC DNA showed cross-hybridization to the W chromosome, usually to the entire W chromosome, suggesting that repetitive sequences are shared by the W and Z chromosomes. These repetitive sequences likely evolved in the finch lineage after it diverged from the Galliform lineage. |
| Databáze: | OpenAIRE |
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