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Supernumerary chromosome inheritance in the curimbatá (Prochilodus lineatus) of the Mogi-Guaçu River.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Voltolin, Tatiana Aparecida Senhorini, José Augusto Oliveira, Cláudio Galindo De Foresti, Fausto Bortolozzi, Jehud Porto-Foresti, Fábio |
| Copyright Year | 2010 |
| Abstract | Prochilodus lineatus is widely used in pisciculture projects, mainly in the south of Brazil. It shows a basic karyotype composed of 2n = 54 chromosomes, in addition to as many as seven supernumerary chromosomes, also known as B-chromosomes. These additional small chromosomes are frequently heterochromatic, vary in number and morphology, and generally have no homology with the A complement. Intensive studies have investigated the function, origin and inheritance of these supernumerary chromosomes. The present study aimed to determine the inheritance pattern of the B-chromosomes resulting from directed cross-fertilization of P. lineatus, Prochilodontidae isolated from the Mogi-Guaçu River, Pirassununga, SP. These cross-fertilization experiments were performed at CEPTA/ICMBio in Pirassununga. The transmission patterns of these micro-chromosomes agreed (K(B)= 0.48) with the expectation of regular meiotic behavior following a Mendelian transmission model (K(B)= 0.5). A non-accumulation process was observed for these B-chromosomes in filial generations. Together, our results indicate that the supernumerary chromosomes in P. lineatus samples from the Mogi-Guaçu River exist in a neutral state and follow a Mendelian inheritance pattern. |
| File Format | PDF HTM / HTML |
| DOI | 10.1111/j.1601-5223.2009.02135.x |
| PubMed reference number | 20626767 |
| Journal | Medline |
| Volume Number | 147 |
| Issue Number | 3 |
| Alternate Webpage(s) | https://repositorio.unesp.br/bitstream/handle/11449/18729/WOS000279734800003.pdf;jsessionid=B8ABCA2AAE7ABB837BDCBFE3770C9F0F?sequence=1 |
| Alternate Webpage(s) | https://doi.org/10.1111/j.1601-5223.2009.02135.x |
| Journal | Hereditas |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |