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. 2007 Feb;175(2):907-15.
doi: 10.1534/genetics.106.059972. Epub 2006 Dec 18.

A microsatellite linkage map of Barramundi, Lates calcarifer

Chun Ming Wang  1 , Ze Yuan Zhu, Loong Chueng Lo, Felicia Feng, Grace Lin, Wen Tong Yang, Jian Li, Gen Hua Yue
Affiliations

A microsatellite linkage map of Barramundi, Lates calcarifer

Chun Ming Wang et al. Genetics. 2007 Feb.

Abstract

Barramundi (Lates calcarifer) is an important farmed marine food fish species. Its compact genome (approximately 700 Mb) is among the smallest genomes of food fish species. We established a first-generation genetic linkage map of Barramundi with a mapping panel containing three parents (two males and one female) and 93 progeny. A total of 240 microsatellite markers were mapped into 24 linkage groups. Among these markers, 10 were located in ESTs and known genes. The total lengths of the female and male maps were 873.8 and 414.5 cM with an average marker spacing of 6.20 and 4.70 cM, respectively. Comparing the flanking sequences of the 240 Barramundi microsatellites with the assembled whole-genome sequences of Tetraodon nigrovidiris revealed 55 homologous sequences located in 19 of the 21 chromosomes of T. nigrovidiris. The map will not only enable the mapping of quantitative trait loci, but also provide new resources for understanding the evolution of fish genomes.

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Figures

F<sc>igure</sc> 1.—
Figure 1.—
A genetic linkage map of Barramundi based on microsatellite markers (left, the female map; right, the male map). Estimates of map distances between markers are indicated in Kosambi centimorgans.
F<sc>igure</sc> 1.—
Figure 1.—
A genetic linkage map of Barramundi based on microsatellite markers (left, the female map; right, the male map). Estimates of map distances between markers are indicated in Kosambi centimorgans.
F<sc>igure</sc> 1.—
Figure 1.—
A genetic linkage map of Barramundi based on microsatellite markers (left, the female map; right, the male map). Estimates of map distances between markers are indicated in Kosambi centimorgans.
F<sc>igure</sc> 1.—
Figure 1.—
A genetic linkage map of Barramundi based on microsatellite markers (left, the female map; right, the male map). Estimates of map distances between markers are indicated in Kosambi centimorgans.
F<sc>igure</sc> 2.—
Figure 2.—
Differences in recombination ratio between males and females among adjacently paired markers on all 24 linkage groups.
See this image and copyright information in PMC

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