A Genetic Linkage Map of a Cichlid Fish, the Tilapia (Oreochromis niloticus)-Reference-Cited by-同舟云学术

A Genetic Linkage Map of a Cichlid Fish, the Tilapia (Oreochromis niloticus)

Published:1998-03-01 Issue:3 Volume:148 Page:1225-1232
ISSN:1943-2631
Container-title:Genetics
language:en
Short-container-title:

Author:

Kocher Thomas D¹,Lee Woo-Jai¹,Sobolewska Halina²,Penman David²,McAndrew Brendan²

Affiliation:

1. Department of Zoology, University of New Hampshire, Durham, New Hampshire 03824

2. Institute of Aquaculture, University of Stirling, Stirling FK9 4LA, Scotland, United Kingdom

Abstract

Abstract We have constructed a genetic map for a tilapia, Oreochromis niloticus, using DNA markers. The segregation of 62 microsatellite and 112 anonymous fragment length polymorphisms (AFLPs) was studied in 41 haploid embryos derived from a single female. We have identified linkages among 162 (93.1%) of these markers. 95% of the microsatellites and 92% of the AFLPs were linked in the final map. The map spans 704 Kosambi cM in 30 linkage groups covering the 22 chromosomes of this species. Twenty-four of these linkage groups contain at least one microsatellite polymorphism. From the number of markers 15 or fewer cM apart, we estimate a total map length of ~1000–1200 cM. High levels of interference are observed, consistent with measurements in other fish species. This map is a starting point for the mapping of single loci and quantitative traits in cichlid fishes.

Publisher

Oxford University Press (OUP)

Subject

Genetics

Link

https://academic.oup.com/genetics/article-pdf/148/3/1225/42006086/genetics1225.pdf

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