Abstract:
:We present a genetic map for Xenopus tropicalis, consisting of 2886 Simple Sequence Length Polymorphism (SSLP) markers. Using a bioinformatics-based strategy, we identified unique SSLPs within the X. tropicalis genome. Scaffolds from X. tropicalis genome assembly 2.0 (JGI) were scanned for Simple Sequence Repeats (SSRs); unique SSRs were then tested for amplification and polymorphisms using DNA from inbred Nigerian and Ivory Coast individuals. Thus identified, the SSLPs were genotyped against a mapping cross panel of DNA samples from 190 F2 individuals. Nearly 4000 SSLPs were genotyped, yielding a 2886-marker genetic map consisting of 10 major linkage groups between 73 and 132cM in length, and 4 smaller linkage groups between 7 and 40cM. The total effective size of the map is 1658cM, and the average intermarker distance for each linkage group ranged from 0.27 to 0.75cM. Fluorescence In Situ Hybridization (FISH) was carried out using probes for genes located on mapped scaffolds to assign linkage groups to chromosomes. Comparisons of this map with the X. tropicalis genome Assembly 4.1 (JGI) indicate that the map provides representation of a minimum of 66% of the X. tropicalis genome, incorporating 758 of the approximately 1300 scaffolds over 100,000bp. The genetic map and SSLP marker database constitute an essential resource for genetic and genomic analyses in X. tropicalis.
journal_name
Dev Bioljournal_title
Developmental biologyauthors
Wells DE,Gutierrez L,Xu Z,Krylov V,Macha J,Blankenburg KP,Hitchens M,Bellot LJ,Spivey M,Stemple DL,Kowis A,Ye Y,Pasternak S,Owen J,Tran T,Slavikova R,Tumova L,Tlapakova T,Seifertova E,Scherer SE,Sater AKdoi
10.1016/j.ydbio.2011.03.022subject
Has Abstractpub_date
2011-06-01 00:00:00pages
1-8issue
1eissn
0012-1606issn
1095-564Xpii
S0012-1606(11)00194-1journal_volume
354pub_type
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