changes.md

SYNY CHANGE LOG

SYNY-v1.2a

• nucleotide_biases.pl now calculates GC and AT skews. Corresponding data files are located in the PLOTS/CIRCOS_DATA/ subdirectory.
• GC/AT skews are now plotted automatically with Circos. If desired, these subplots can be turned off independently with the --no_skews option, or together with all nucleotide biases subplots (with --no_ntbiases).
• Added a simple Fasta + GFF3 to GBFF converter (gff3_to_gbff.pl) in the Utils/ subdirectory. This tool was tested on NCBI GFF3 files and expects the GFF3 file(s) to include gene/mRNA/exon/CDS entries in the type column and the ID and Parent tags in the attributes column. It also expects the corresponding Fasta and GFF3 files to share the same prefixes (e.g. genome_1.fasta / genome_1.gff). The GBFF files thus created were designed to work with SYNY but do not adhere exactly to the GBFF format and may not work for other purposes.
• Added orient_fastas_to_reference.py to the Utils/ subdirectory. This script reorients contigs in FASTA file(s) based on BLASTN homology searches against a reference. This can be useful when working with newly assembled genomes.

SYNY-v1.2

Bugfix release

• Fixed concatenation issue with isoforms in list_maker.pl
• Fixed subranges issues in list_maker.pl
• Adjusted linearmap alpha value and edge color for readability in linear_maps.py
• Slightly reduced memory usage with matplotlib

SYNY-v1.1b

Bugfix release

• Fixed extra length issues with barplots, dotplots and linemaps. Code was missing a line.strip(). Issue created visual artefacts on barplots (longer frames).

Code cleanup:

• Added --version option for all scripts.
• Minor code cleanup / standardisation across scripts

SYNY-v1.1a

Additions

• Added the --include option to select contigs by name from text file(s); one name per line
• Added the --ranges option to select contig subranges from text file(s); name start end
• Added the --bpmode option to generate pairwise (pair) and/or concatenated (cat) barplots. Possible values are pair (default), cat, and all (for both).
• Added the --bclusters option to color clusters by alternating colors in the barplots. The colors are not related within or between contigs, they are just used to highlight collinear chunks.
• Created check_versions.pl to summarize script versions; this information can now be displayed with run_syny.pl --version.

Bugfixes

• list_maker.pl now grabs GeneID tags if locus tags are absent from GBFF annotation files.
• Fixed .txt file extension + added a file size check to paf_metrics.py. Now skips plotting if file is empty.
• Fixed div by zero issue in nucleotide_biases.pl.
• Added a check to detect if annotations parsed are blank. run_syny.pl no longer crashes if annotations are blank when running gene cluster inferences. If blank, it now now skips this section automatically.
• Fixed perl env shebangs causing issues with conda
• Fixed wrong exit codes with readmes

Readme / logs

• Added section about memory usage with genome alignments
• Added mashmap barplot examples in the Encephalitozoon section
• Added changes.md summarizing changes between versions
• Improved syny.log file.

SYNY-v1.1

Additions:

• SYNY now generates linear maps (aka linemaps) from PAF files with linear_maps.py.
• Added support for MashMap3 genome alignments. Mashmap can be selected instead of minimap with --aligner mashmap. It runs in a smaller memory footprint than minimap (if using its default percentage identity of 85%). It does not product exact alignments however.
• Added the option to exclude contigs by name matching regular expression(s): e.g. --exclude '^AUX' '^CPGT'.
• Added an alternate SYNY installation method that does not require sudo privileges by leveraging conda packages.

Fixes:

• Fixed the The number of annotation files (2) does not equal the number of protein files (1) error => rewrote the corresponding segment and removed the obsoleted subroutine.
• Fixed the unreliable $diamond_check in get_homology.pl (i.e. replaced which by command -v).
• Changed Perl dependency Roman => Text::Roman in nucleotide_biases.pl.

SYNY-v1.0b

• run_syny.pl options can now be set from a configuration file (requires Getopt::ArgvFile); e.g. run_syny.pl @commands.conf
• Added the Getopt::ArgvFile dependency to setup_syny.pl => sudo cpanm Getopt::ArgvFile
• Added a minimum contig size option + set defaults to all contigs, i.e. (--minsize 1)
• Added a matplotlib color palette check before computations so that plots won't crash if the color palette entered does not exist

SYNY-v1.0a

• Added --hfsize, --hmin, --hmax and --hauto options to heatmaps
• Added more options to the Circos --labels command line switch. Possible values are now: mixed, roman, arabic and names
• Added --pthreads option to set the limit of plotting instances to run in parallel (in case each plot eats up too much RAM); defaults to the value set by --threads if omitted.
• Added SVG output to paf_metrics.py
• Set fonts as editable in SVG output files
• Removed unnecessary border frames from barplots
• Fixed ambiguous heatmap titles
• Added an example script (Arabidopsis.sh) in Examples/ to download two Arabidopsis genomes (~ 100-150 Mbp each) for testing purposes

SYNY-v1.0

Stable release

Misc:

• Fixed output directory bug in run_syny.pl when using a deep tree
• Fixed abs_path() issue in setup_syny.pl that caused incomplete paths in the output configuration file
• Created check_mp_colors.py to list/plot color palettes available on the system (Fedora 40/Ubuntu 22.04 matplotlib palettes are not the same - 170 vs. 166) + added color palette plot (Images/python_color_palettes.png)
• Fixed out of bounds barplot legends
• Added font size options --bfsize/--dfsize options for barplots/dotplots

Circos:

• Contigs from the reference genome are now visually distinct and are labelled by roman numerals. Other contigs are labelled by arabic numerals.
• Added --orientation option (possible values: normal, inverted, both) + removed the now obsoleted --no_invert/--no_normal options
• Added --no_cticks option to disable ticks in Circos plots.
• added --no_ntbiases option to disable nucleotide bias subplots.
• Changed the default Circos plot mode to pairwise (--circos pair); concatenated plots can take a while to compute and are not always useful.
• Circos figures are now plotted in --orientation normal by default instead of both normal/inverted => less wasteful.
• Renamed the .genotype files generated by SYNY as .karyotype to match the nomenclature used by Circos

OLDER VERSIONS

SYNY-v0.9e

Cleanup release:

• Fixed a bug that crashed nucleotide_biases.pl when the reference entered was not found. Now uses the first sequence alphabetically if the ref entered is not found.
• Created fasta_to_gbff.pl to convert FASTA sequences to GBFF files (without annotations); useful to compare newly assembled genomes using pairwise alignments
• Added Alignments, Clusters, Plots, and Utils subdirs to the git repository and moved scripts/data accordingly
• Added shell scripts to download the example annotation data from NCBI
• Improved/cleaned up README

SYNY-v0.9d

Cleanup release:

• Sanitized output directory:
  • Regrouped subdirs by analysis (ALIGNMENTS/, CLUSTERS/) and moved content accordingly
  • Created PLOTS/ subdir and moved all plots therein
  • Renamed the CIRCOS data folder as CIRCOS_DATA/ for greater clarity
  • Created SEQUENCES/ subdir to store genome and protein fasta files
• Restructured/cleaned up run_syny.pl
• Improved the output log (syny.log)

SYNY-v0.9c

• Simplified default help message
• Added --help option => displays all command lines options
• Added --no_clus option => turns off gene cluster inferences
• Added --no_circos, --no_barplot and --no_heatmap options => skips the correspoding plots
• Now generates both pairwise and concatenated Circos plots; --circos all is set as default

SYNY-v0.9b

Bugfix release:

• Fixed strandedness in clusters_to_paf.pl, which caused collinearity SNAFUs in dotplots generated from the corresponding PAF files (e.g. .gap_5.paf).

SYNY-v0.9a

• Parallelized several processes (list creation, PAF metrics, barplots/dotplots/heatmaps)
• Fixed an issue with out-of-bounds links in Circos plots due to 1-based vs. 0-based PAF columns
• Standardized shell output + added progress counters

SYNY-v0.9

• run_syny.pl: Circos plotting is now multithreaded (one plot per thread)
• run_syny.pl: Now generates concatenated and/or pairwise circos plots with --circos cat, --circos pair, --circos plot
• run_syny.pl: Changed default threads value to 16 ## Previously defaulted to 8
• nucleotide_biases.pl: Now generates concatenated, pairwise and single circos configuration files

SYNY-v0.8e

• get_synteny.pl: Fixed issue with out-of-order locus_tags when inferring synteny from protein clusters
• list_maker.pl: Fixed issue with multiple isoforms sharing the same locus_tag in GenBank files
• Now generates heatmaps summarizing percentages of colinear bases between genomes (with paf_to_heatmap.py)
• Fixed title in protein cluster heatmaps
• --threads option now applies to minimap2 alignments and diamond homology searches

SYNY-v0.8d

• run_syny.pl now generates Circos plots for all requested gap values if --circos is invoked (+ moved plotting to subs).
• Moved Circos plots to CIRCOS_PLOTS/ subdirectory
• Standardized Circos / barplot / dotplot file names using the .mmap/.gap_0 affixes
• Renamed Circos configuration filenames in the CIRCOS/ subdirectory for greater clarity

SYNY-v0.8c

• paf_to_barplot.py / paf_to_dotplot.py now load queries/subjects from fasta files => otherwise some queries/subjects are missing from PAF files when no match is found.
• Fixed relative positions in PAF files generated with clusters_to_paf.pl
• Dotplots are now generated both from minimap2 pairwise genome alignments (.mmap.) and from protein clusters found with SYNY (e.g. .gap_0.)
• Added minimap2 --threads option to run_syny.pl + set default value to 8

SYNY-v0.8b

• Fixed memory usage in paf_to_dotplot.py + added SVG output. Now runs much faster too.
• Fixed memory leak in paf_to_barplot.py
• clusters_to_paf.pl now generates PAF files from clusters identified by SYNY
• Barplots are now generated from these PAF files and are identified with the gap affix, e.g. .gap_0.
• Barplots generated from minimap2 alignments are now labelled with the .mmap. affix

SYNY-v0.8a

• Moved PAF to Circos links conversion to paf2links.pl subscript
• Added --clusters option to color ribbons in Circos plots by clusters instead of by contigs ## Useful when comparing bacterial genomes

SYNY-v0.8

• Added installation script setup_syny.pl. Tested on Fedora, Ubuntu, Debian, Kali and openSUSE Tumbleweed Linux distributions.
• Changed default heatmap palette from crest to winter_r; crest was missing from seaborn in some Linux distros...
• Fixed issue with clustered dendrograms; cm.figure.suptitle => cm.fig.suptitle; .figure.subtitle was not recognized in all distros...

SYNY-v0.7f

• Now generates matrices sumarizing percentages of colinear protein-coding genes for each gap value investigated: e.g. SYNTENY/gap_0/matrix_gap_0.tsv
• Rewrote protein_cluster_hm.py to generate heatmaps from these matrices by leveraging pandas dataframes
• protein_cluster_hm.py now generates clustered dendrograms in addition to standard heatmaps
• Heatmaps and clustered dendrograms are now also generated in SVG format
• Added Circos --labels, --label_size and --label_font options; contigs can now be labelled by their names with --labels names

SYNY-v0.7e

• Added heatmaps displaying the percentages of proteins found in clusters between each pair of genomes (summarized in SYNTENY/clusters_summary_table.tsv)
• Fixed dotplot issue with unidimensional arrays.
• Fixed dotplot issue when the total number of subplots is 1; now generates a single plot instead of a subplot.

SYNY-v0.7d

• Now calculates pairwise genome alignment metrics from minimap2 PAF files, summarizes them as scatter plots, and stores the results in the ALIGNMENTS/METRICS subdirectory (see paf_metrics.py).
• Minor README restructuring to improve readability

SYNY-v0.7c

• Added a --resume option to skip previously computed minimap2 alignments ## Useful when optimizing barplots/dotplots
• Added dimensions to barplot/dotplot output file names ## To prevent overwriting previous files when optimizing plots
• Barplot/dotplot height/width options are now independent: --height/--dheight and --width/--dwidth

SYNY-v0.7b

• Added preset option for minimap2 (--asm 5, --asm 10 or --asm 20), default = off
• Added option to skip dotplots (--no_dotplot)
• Added option to adjust gaps in dotplots (--wdis / --hdis)
• Added options to adjust Circos ticks, ideograms, links and points per track max values

SYNY-v0.7a

• Reduced memory usage with paf_to_dotplots.py
• Added color scheme to barplot/dotplot output files
• Misc bug fixes

SYNY-v0.7

• Now generates barplots showing colinear blocks between compared genomes using a per contig/chromosome color palette (default) or using a monochrome color instead (with --monobar blue).
• Added a color palette option to dotplots (e.g. --dotpalette inferno)
• Minor code fixes

SYNY-v0.6b

• Cleaner dotplots
• Minor code fixes
• Better readme

SYNY-v0.6a

• Now generates pairwise genome alignment dotplots (in PNG format) from the minimap2 PAF files (using mathplotlib)
• Minor code fixes

SYNY-v0.6

• Added minimap2 dependency: now generates pairwise genome alignments in MAF, PAF and ALN (BLAST-like) formats
• Now generates colinearity plots from pairwise genome alignments (PAF) as well as from conserved protein clusters (SYNY)

SYNY-v0.5c

• Circos plots are now generated properly

SYNY-v0.5b

• simplified output: merged annotation/feature lists
• removed obsoleted options; support for GFF/EMBL files was broken

SYNY-v0.5a

• Fixed crash on Ubuntu 22.04 with get_homology.pl
• Added Circos installation HOWTO from its tarball archive

Note: using apt install circos to install Circos on Ubuntu does not install its configuration files in the proper relative paths.

SYNY-v0.5

• Initial release with code cleaned up a bit. Should work as intended.