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Title: A chromosome-scale genome assembly and dense genetic map for Xenopus tropicalis

Journal Article · · Developmental Biology
 [1];  [1];  [2];  [3];  [2];  [4];  [5];  [1];  [1];  [5];  [3];  [3];  [1];  [6]
  1. Univ. of California, Berkeley, CA (United States)
  2. USDOE Joint Genome Institute (JGI), Walnut Creek, CA (United States)
  3. USDOE Joint Genome Institute (JGI), Walnut Creek, CA (United States); HudsonAlpha Inst. of Biotechnology, Huntsville, AL (United States)
  4. Ulsan National Inst. of Science and Technology, Ulsan (Korea)
  5. Yale Univ., New Haven, CT (United States). School of Medicine
  6. Univ. of California, Berkeley, CA (United States); USDOE Joint Genome Institute (JGI), Walnut Creek, CA (United States); Okinawa Inst. of Science and Technology Graduate Univ., Onna, Okinawa (Japan)

The Western clawed frog Xenopus tropicalis is a diploid model system for both frog genetics and developmental biology, complementary to the paleotetraploid X. laevis. Here we report a chromosome-scale assembly of the X. tropicalis genome, improving the previously published draft genome assembly through the use of new assembly algorithms, additional sequence data, and the addition of a dense genetic map. The improved genome enables the mapping of specific traits (e.g., the sex locus or Mendelian mutants) and the characterization of chromosome-scale synteny with other tetrapods. We also report an improved annotation of the genome that integrates deep transcriptome sequence from diverse tissues and stages. The exon-intron structures of these genes are highly conserved relative to both X. laevis and human, as are chromosomal linkages ("synteny") and local gene order. A network analysis of developmental gene expression will aid future studies.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC); National Institutes of Health (NIH); National Research Foundation of Korea (NRF)
Grant/Contract Number:
AC02-05CH11231; S10RR029668; S10RR027303; GM66684; HD08070
OSTI ID:
1547529
Alternate ID(s):
OSTI ID: 1615281
Journal Information:
Developmental Biology, Vol. 452, Issue 1; ISSN 0012-1606
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 29 works
Citation information provided by
Web of Science

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Cited By (2)

Developmental Systems Drift and the Drivers of Sex Chromosome Evolution journal November 2019
Advancing genetic and genomic technologies deepen the pool for discovery in Xenopus tropicalis journal July 2019

Figures / Tables (8)