Gossypium barbadense (AD2) Genome HAU Assembly v2.0 & Annotation v1.0

Overview
Analysis NameGossypium barbadense (AD2) Genome HAU Assembly v2.0 & Annotation v1.0
MethodIrys Solve (BioNano) (v3.2)
SourceIllumina paired-end, PacBio and BioNano
Date performed2018-10-30

About the Assembly

Single-molecule real-time sequencing technology (PacBio RSII) was applied to assemble de novo the genome sequence of G. barbadense accession 3–79, generated 210.98 Gb of genome sequence with an estimated depth of coverage of at least 80× for the genome.  Illumina paired-end data was used to correct low-quality nucleotides and insertions/deletions (InDels) from the PacBio sequencing. These polished contigs were processed for a hybrid assembly by using high-resolution optical mapping (BioNano Genomics Irys) data from the same accessions. To construct chromosome-scale scaffolds, we used high-throughput chromosome conformation capture (Hi-C) data from each accession to categorize and order these assemblies obtained by optical mapping.

 

 Assembly Summary G. barbadense  
 Total length of contigs 2,222,525,789  
 Total length of assemblies 2,266,656,771  
 Estimated gap size, bp 44,130,982  
 Percentage of anchoring, bp 97.68%  
 Percentage of anchoring and ordering, bp 96.35%  
 Number of contigsa 4,930  
 Contig L50, bp 2,151,565  
 Number of scaffoldsb 3,032  
 Scaffold L50, bp 92,880,876  
 GC content 34.2%  
 Percentage of repeat sequences 69.83%  
 Number of genes 71,297  
 Number of transcripts 109,778  
 aHi-C + BioNano corrected contigs.  
 bHi-C-assembled genome sequences.  

 

Publication

Wang et al. Reference genome sequences of two cultivated allotetraploid cottons, Gossypium hirsutum and Gossypium barbadense. Nature genetics. 2018 Dec 03

Assembly

The Gossypium barbadense HAU Genome v2.0 assembly files are available in FASTA and GFF3 formats.

Downloads

Chromosome (FASTA file) Gossypium_barbadense_HAU_v2.0.fasta.gz
Chromosome Repeat Annotation (GFF3 file) Gossypium_barbadense_HAU_v2.0.repeat.annotation.gff3.gz

 

Gene Predictions

The Gossypium hirsutum HAU genome v2.0 gene prediction files are available in FASTA and GFF3 formats.

Downloads

Transcript sequences (FASTA file) Gossypium_barbadense_HAU_v2.0.transcripts.fasta.gz
CDS sequences (FASTA file) Gossypium_barbadense_HAU_v2.0.CDs.fasta.gz
Protein sequences  (FASTA file) Gossypium_barbadense_HAU_v2.0.proteins.fasta.gz
Genes (GFF3 file) Gossypium_barbadense_HAU_v2.0.genes.gff3.gz

 

Downloads

All annotation files are available for download by selecting the desired data type in the left-hand "Resources" side bar.  Each data type page will provide a description of the available files and links do download.  Alternatively, you can use the FTP repository for bulk download.

Homology

Homology of the Gossypium barbadenseHAU Genome v1.0 proteins was determined by pairwise sequence comparison using the blastp algorithm against various protein databases. An expectation value cutoff less than 1e-9 was used for the NCBI nr (Release 2018-05) and 1e-6  for the Arabidoposis proteins (TAIR10), UniProtKB/SwissProt (Release 2018-04), and UniProtKB/TrEMBL (Release 2018-04) databases. The best hit reports are available for download in Excel format. 

 

Protein Homologs

Gossypium barbadense HAU v2.0 proteins with NCBI nr homologs (EXCEL file) AD2_HAU_v2.0_vs_nr.xlsx.gz
Gossypium barbadense HAU v2.0 proteins with NCBI nr (FASTA file) AD2_HAU_v2.0_vs_nr_hit.fasta.gz
Gossypium barbadense HAU v2.0 proteins without NCBI nr (FASTA file) AD2_HAU_v2.0_vs_nr_noHit.fasta.gz
Gossypium barbadense HAU v2.0 proteins with arabidopsis (TAIR10) homologs (EXCEL file) AD2_HAU_v2.0_vs_tair.xlsx.gz
Gossypium barbadense HAU v2.0 proteins with arabidopsis (TAIR10) (FASTA file) AD2_HAU_v2.0_vs_tair_hit.fasta.gz
Gossypium barbadense HAU v2.0 proteins without arabidopsis (TAIR10) (FASTA file) AD2_HAU_v2.0_vs_tair_noHit.fasta.gz
Gossypium barbadense HAU v2.0 proteins with SwissProt homologs (EXCEL file) AD2_HAU_v2.0_vs_swissprot.xlsx.gz
Gossypium barbadense HAU v2.0 proteins with SwissProt (FASTA file) AD2_HAU_v2.0_vs_swissprot_hit.fasta.gz
Gossypium barbadense HAU v2.0 proteins without SwissProt (FASTA file) AD2_HAU_v2.0_vs_swissprot_noHit.fasta.gz
Gossypium barbadense HAU v2.0 proteins with TrEMBL homologs (EXCEL file) AD2_HAU_v2.0_vs_trembl.xlsx.gz
Gossypium barbadense HAU v2.0 proteins with TrEMBL (FASTA file) AD2_HAU_v2.0_vs_trembl_hit.fasta.gz
Gossypium barbadense HAU v2.0 proteins without TrEMBL (FASTA file) AD2_HAU_v2.0_vs_trembl_noHit.fasta.gz

 

Functional Analysis

Functional annotation files for the Gossypium barbadense HAU Genome v2.0 are available for download below. The Gossypium barbadenseTexas Genome proteins were analyzed using InterProScan in order to assign InterPro domains and Gene Ontology (GO) terms. Pathways analysis was performed using the KEGG Automatic Annotation Server (KAAS).

Downloads

GO assignments from InterProScan AD2_HAU_v2.0_genes2GO.xlsx.gz
IPR assignments from InterProScan AD2_HAU_v2.0_genes2IPR.xlsx.gz
Proteins mapped to KEGG Pathways AD2_HAU_v2.0_KEGG-orthologis.xlsx.gz
Proteins mapped to KEGG Orthologs AD2_HAU_v2.0_KEGG-pathways.xlsx.gz

 

Markers
Marker alignments were performed by the CottonGen Team of Main Bioinformatics Lab at WSU. The alignment tool 'BLAT' was used to map marker sequences from CottonGen to the G. barbadense HAU v2.0 genome assembly. Markers required 90% identity over 97% of their length. For SSRs & RFLPs, gap size was restricted to 1000bp or less with less than 2 gaps. For dbSNPs and Indels gap size was restricted to 2bp with less than 2 gaps. The available files are in GFF3 format. Markers available in CottonGen are linked to JBrowse.
 
CottonGen SNP-InDel markers mapped to genome G.barbadense_HAU_v2.0_SNP-InDel
CottonGen RFLP markers mapped to genome G.barbadense_HAU_v2.0_RFLP
CottonGen SSR markers mapped to genome G.barbadense_HAU_v2.0_SSR