1,105 Matching Annotations
  1. Aug 2021
    1. Now published in Gigabyte doi: 10.46471/gigabyte.7

      This work has been peer reviewed in GigaByte, which carries out open, named peer-review. These reviews are published under a CC-BY 4.0 license and were as follows:

      Reviewer 1: Qiye Li Since I am unable to access the data submitted to NCBI or GigaDB, I cannot judge this issue currently. Please make sure that the gene annotation, repeat annotation, transcriptome assembly, gene expression matrix, and genetic variant data have been uploaded somewhere in addition to the raw reads and genome assembly.

      While the bioinformatic tools used in all the steps are indicated clearly, the parameters for many tools are not defined.

      What is the gap ratio (i.e. % of unclosed gaps or Ns) of the genome assembly? As I know, the raw Supernova assembly may have a high proportion of gaps, although the scaffold N50 is pretty good. Additional gap closer steps (e.g. using GapCloser, RRID:SCR_015026) would improve the completeness of the assembly.

      BUSCO analysis is competent to access the completeness of the protein-coding gene space of the genome assembly. But a good BUSCO score does not necessarily mean good assembly completeness. Another conventional way to demonstrate the completeness of the assembly is to show the metrics of DNA read mapping, such as the overall mapping rate, % in proper pair, % of covered bases, etc.

      How is the completeness of the gene set generated by the Fgenesh++ pipeline? I suggest that the authors provide BUSCO score for the Fgenesh++ gene set as they did for the transcriptome assembly.

      Methods related to Alzheimer’s Genes Analysis: The methods used to identify the Alzheimer’s disease (AD) related human genes in antechinus seem to be flawed, as the authors only performed unidirectional searches for homologs in the antechinus gene set. I think the authors should identify bona fide orthologs of these AD-related genes in antechinus. The conventional way to determine orthologs between two species is based on a reciprocal best hit (RBH) strategy (i.e. RBHs between the human and antechinus gene sets).

      Reviewer 2: Walter Wolfsberger PRJNA664282 accession number is not found on NCBI. Is it scheduled to be released with the publication?

      Appropriate tools were used for appropriate analyses. The Y chromosome identification approach seems sound.

      The bioinformatic approaches the authors tools are sound, with the right tools and approaches to the analysis.

      The prep-print is well worded and easy to understand and follow. It provides good amount of context, that justifies the extra analyses done in the publication. The assembly quality is adequate, with relatively low N50, but good completeness scores, given that mammalian genomes have higher levels of low complexity\repetitive content. The metrics presented adhere to the scope of GigaByte, and the data itself is valuable to the scientific community.

    1. Genome sequencing

      Reviewer 2: Mahul Chakraborty

      Reviewer Comments to Author: In "Two high-quality de novo genomes from single ethanol-preserved specimens of tiny metazoans (Collembola)." Schneider et al. described de novo genome assemblies of two tiny field collected Collembolan specimens. The authors collected high quality genomic DNA from the specimens following a Pacfiic Biosciences recommended protocol for ultra low input library, amplified them, and generated adequate sequence coverage to generate contiguous assemblies. This is a significant step forward in generating de novo genome assemblies from small amounts of tissues and cells and therefore will be a useful guide for not only people who are studying whole organisms but also people who are studying variation between cell or tissue types within an individual. I have some minor comments: "They were preserved in 96% ethanol, kept at ambient-temperature for one day until they would be stored at -20°C for 1.5 months, until DNA extraction." - Was the preservation at -20 a deliberate step to see the effect of this treatment on sequencing or just a conscious choice for specimen preservation? The specific conditions used (e.g. the time and speed of centrifuge) for the g-Tube shearing needs to be added in the Methods. "Circularity was validated manually, and nucleotide bases were called with a 75% threshold Consensus.?" - please clarify what the 75% threshold consensus is. "We then performed another estimation of the genome size by dividing the number of mapped nucleotides by mode of the coverage distribution" - Why was this done? Did the authors suspect the Genomescope estimate to be incorrect? "We compared our new genomes sequenced to previous Collembola assemblies that were generated with long read and sometimes additional short read data." - This statement needs citations for the previous Collembola assemblies. The authors used blastn and megablast to search the beta-lactams synthesis genes in the new assembly. Tblastx might be more appropriate. "For D. tigrina a total of 20,22 Gb HiFi data (Q>=20) was generated," - Do you mean 20.22 ? "For S. aquaticus a total of Gb HiFi data (Q>=20) was generated" - missing the number before Gb The authors report only one assembly from hifiasm, which I presume is the primary assembly. Given that the authors assembled diploid individuals, I am curious whether hifiasm assembled the alternate haplotype sequences. "The insect genomes have higher BUSCO scores (96.5 and 99.6%), but lower contiguity (Table 2, Fig. 3)."

      • This statement is incorrect. A number of insect genomes are more contiguous than the assemblies presented here, including Drosophila melanogaster (PMID: 31653862) and several other Drosophila species, Anopheles stephensi (DOI:10.1101/2020.05.24.113019), Anopheles albimanus (PMID: 32883756)
    2. ABSTRACT

      Reviewer 1. Arong Luo

      Reviewer Comments to Author: First, I'd like to commend the authors on attempting to sequence whole genomes of tiny metazoans, which account for a large part of biodiversity in nature and yet are difficult to be sequenced. Second, I am impressed by their ethanol-preserved specimens, which thus make genome sequencing more applicable and attractive in practice. We must admit that sometimes we cannot use fresh specimens directly for genome sequencing. Thus, I think this manuscript is really of scientific significance for specific fields such as insects. I found that the focal part of their sequencing protocol is the "whole genome amplification-based Ultra-Low DNA Input Workflow for SMRT Sequencing (PacBio)" throughout the text, which of course is very complex. So, I suggest the authors provide a flowchart showing critical or main steps during their workflow, and the readers can then understand easily and refer to their workflow in future projects. Finer points: Line 35: I suggest providing specific/important information for the 'novel' protocol herein. Line119-120: Are the specimens later for DNA extraction also morphologically identified? Line130-131: The DNA extract was selected randomly or based on certain measurements? Line 393: delete the dot '.'

    1. Gigabyte doi: 10.46471/gigabyte.6

      Reviewer 2. Yunyun Lv

      Do you understand and agree to our policy of having open and named reviews, and having the your review included with the published papers. (If no, please inform the editor that you cannot review this manuscript.) Yes

      Is the language of sufficient quality? Yes

      Are all data available and do they match the descriptions in the paper? No

      Are the data and metadata consistent with relevant minimum information or reporting standards? See GigaDB checklists for examples http://gigadb.org/site/guide No

      Is the data acquisition clear, complete and methodologically sound? Yes

      Is there sufficient detail in the methods and data-processing steps to allow reproduction? Yes

      Is there sufficient data validation and statistical analyses of data quality? Yes

      Is the validation suitable for this type of data? Yes

      Is there sufficient information for others to reuse this dataset or integrate it with other data? No

      Any Additional Overall Comments to the Author This study presents a chromosome-level genome assembly of common dragonet. Hi-C method was applied to generate the high-quality genomic assembly. The result is valuable for further genomic analysis. However, some basic question should be solved or answered in the article to give a clearer insight.

      Line 35 findings section: The annotated total gene number and their quality should be evaluated and presented in the findings section. Line73-Line75:This sentence contains much speculation. I feel it should be removed or just mention the sympatry of their living location. Line 220: The section mainly described the method of gene annotation, however, the corresponding result is absent. These results are important to perform the various comparative genomic analysis. Thus, a detailed description of gene annotation result should be required in the revision. Line 238: Availability of supporting data; I searched the project accession number in NCBI database, but found no result. Thus, the supporting data is not unavailable in current.

      Line 33,type error: “syngnatiforms” should be syngnatiformes

      Recommendation Major Revision

    2. Now published

      Reviewer 1. Chao Bian

      Do you understand and agree to our policy of having open and named reviews, and having the your review included with the published papers. (If no, please inform the editor that you cannot review this manuscript.)

      Yes

      Is the language of sufficient quality? Yes

      Are all data available and do they match the descriptions in the paper? Yes

      Are the data and metadata consistent with relevant minimum information or reporting standards? See GigaDB checklists for examples http://gigadb.org/site/guide Yes

      Is the data acquisition clear, complete and methodologically sound? Yes

      Is there sufficient detail in the methods and data-processing steps to allow reproduction? Yes

      Is there sufficient data validation and statistical analyses of data quality? Yes

      Is the validation suitable for this type of data? Yes

      Is there sufficient information for others to reuse this dataset or integrate it with other data? Yes

      Any Additional Overall Comments to the Author?

      This paper, entitled ‘Chromosome-level genome assembly of a benthic associated Syngnathiformes species: the common dragonet, Callionymus lyra’, has provided a reference genome of the common dragonet with a high contig and scaffold N50 values. The genome size estimation, gene and repeat annotation were also performed in this study. The analysis approaches, such as genome assembling, annotation, are solid and well performed.

      However, for the gene annotation, there was no homology-based annotation for gene annotation. On the other hand, why the authors have not used the HISAT or Tophat to map the RNA reads onto genome to predict the gene structure. I really rarely see the transcriptome annotation by using the trinity assembly.

      In addition, I still consider that the first published genome should have at least one analysis point for illuminating the molecular mechanism of the special character of this species. Only an assembly and some genes will largely reduce the impacts and interests for this fascinating fish species.

      Some minor mistakes should be changed: The decimal place through whole paper should be uniformed. Line 41, 538 Mbp should be 538.0 Mbp. Line 45, 27.66% should be 27.7%. Line 76, change “suggest” to “suggests”. Line 83 and line 94, for “see [9]” and “by [10]”, the author’s name should be indicated in text, like “see XX’s study [9]”. Line 104, tissue should be tissues. Line 120 and line 131, change ‘562’ to ‘562.0’, and change ‘645’ to ‘645.0’. Line 156, explains should be explain.

      Recommendation

      Major Revision

    1. Now published in Gigabyte doi: 10.46471/gigabyte.2 Qiye Li 1BGI-Shenzhen, Shenzhen 518083, China2State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, ChinaFind this author on Google ScholarFind this author on PubMedSearch for this author on this siteORCID record for Qiye LiQunfei Guo 1BGI-Shenzhen, Shenzhen 518083, China3College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, ChinaFind this author on Google ScholarFind this author on PubMedSearch for this author on this siteYang Zhou 1BGI-Shenzhen, Shenzhen 518083, ChinaFind this author on Google ScholarFind this author on PubMedSearch for this author on this siteORCID record for Yang ZhouHuishuang Tan 1BGI-Shenzhen, Shenzhen 518083, China4Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu 611731, ChinaFind this author on Google ScholarFind this author on PubMedSearch for this author on this siteTerry Bertozzi 5South Australian Museum, North Terrace, Adelaide 5000, Australia6School of Biological Sciences, University of Adelaide, North Terrace, Adelaide 5005, AustraliaFind this author on Google ScholarFind this author on PubMedSearch for this author on this siteORCID record for Terry BertozziYuanzhen Zhu 1BGI-Shenzhen, Shenzhen 518083, China7School of Basic Medicine, Qingdao University, Qingdao 266071, ChinaFind this author on Google ScholarFind this author on PubMedSearch for this author on this siteJi Li 2State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China8China National Genebank, BGI-Shenzhen, Shenzhen 518120, ChinaFind this author on Google ScholarFind this author on PubMedSearch for this author on this siteStephen Donnellan 5South Australian Museum, North Terrace, Adelaide 5000, AustraliaFind this author on Google ScholarFind this author on PubMedSearch for this author on this siteORCID record for Stephen DonnellanGuojie Zhang 2State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China8China National Genebank, BGI-Shenzhen, Shenzhen 518120, China9Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, 650223, Kunming, China10Section for Ecology and Evolution, Department of Biology, University of Copenhagen, DK-2100 Copenhagen, DenmarkFind this author on Google ScholarFind this author on PubMedSearch for this author on this siteORCID record for Guojie ZhangFor correspondence: guojie.zhang@bio.ku.dk

      This work has been peer reviewed in GigaByte, which carries out open, named peer-review. These reviews are published under a CC-BY 4.0 license and were as follows:

      Review 1. Walter Wolfsberger Is the language of sufficient quality? Yes.

      Is the data all available and does it match the descriptions in the paper? Yes.

      Is the data and metadata consistent with relevant minimum information or reporting standards?

      Comment: The accession number for GigaDB provided in the paper does not yield any results in the GigaDB search. Using the species name works though.

      Is the data acquisition clear, complete and methodologically sound?

      Comment: Although it is clear in the paper that a significant portion of data was discarded during the early QC step, there is no indication of the reason for it, or the nature of the problem that was encountered. For total in the paper, the research group produced 396 Gb of raw sequence(211 Short insert and 185 long insert libraries) out of which only 180(130 Gb Short insert and never mentioned 55Gb Long insert) were used later on for the assembly. Upon a single library FastQC analysis I have encountered extreme levels of sequence duplication that might indicate the libraries were not diverse or there was a PCR-artifact(like overamplification), that might have lead to this low-quality initial data. The parameters for tool SoapNuke, used in early QC are not defined.

      Is there sufficient detail in the methods and data-processing steps to allow reproduction?

      Is there sufficient data validation and statistical analyses of data quality? Yes.

      Is the validation suitable for this type of data?

      Comments: The assembly followed a logical order, with appropriate tools used at every step.

      Is there sufficient information for others to reuse this dataset or integrate it with other data?

      Comment: Although the resulting assembly was of moderate quality(highly fragmented, but good BUSCO score), a randomly picked library showed a really high duplication rates for sequencing, which indicates that there might be problems for future data reuse. Addressing these issues or at least acknowledging them would benefit the whole report and the dateset.

      Additional Comments:

      I don't think physical coverage is used widely in genome assembly as of now, as given the mate-pair reads nature - it inflates this statistics. I would put the resulting assembly statistics in a table, including all of the metrics(N50, N of Contigs, N of Scaffolds, Average Contig length and etc.) adding BUSCO score to the table, as the current formatting is not readable.  

      Review 2. Nandita Mullapudi Is the language of sufficient quality? Yes.

      Is the data all available and does it match the descriptions in the paper? Yes.

      Is the data and metadata consistent with relevant minimum information or reporting standards?

      Comment: I am unaware of defined reporting standards for assembly reports, however, all sample preparation, data generation and analysis methods have been described in adequate amount of detail.

      Is the data acquisition clear, complete and methodologically sound? Yes.

      Is there sufficient detail in the methods and data-processing steps to allow reproduction?

      Comment: Following additional details would help to enable reproduction: (1) Parameters used for data pre-processing using SOAPnuke, as well as related adapter sequences etc. These would be necessary to reproduce the data clean up step. (2) Memory, processor and time details of computational resource used for assembly (3) Was Platanus assembly attempted using different parameters, how were the parameters reported in the paper arrived at? (4) For gene prediction, several vertebrate sequences were used, the details/source of these reference sequences are missing.

      Is there sufficient data validation and statistical analyses of data quality?

      Comments: 1) One approach to validating an assembly would be to use more than one assembly tool and compare the results. (This may or may not be within the scope of this study.) 2) With respect to the validation performed by mapping back paired end reads to the assembly, there is no discussion of the ~14% of paired end reads that did not map back in the expected orientation. Would tools like REAPR (https://www.sanger.ac.uk/science/tools/reapr) or SEQuel (https://bix.ucsd.edu/SEQuel/man.html) be appropriate to address this? (given the high level of heterozygosity in L. d. dumerilii as reported here).

      Is the validation suitable for this type of data? Yes.

      Is there sufficient information for others to reuse this dataset or integrate it with other data?

      Comments: It may also be helpful to make available the set of cleaned reads, to enable reproduction of the assembly pipeline.

    1. Now published in GigaScience doi: 10.1093/gigascience/giab045 Florian Heyl 1Bioinformatics Group, Department of Computer Science, University of Freiburg, Freiburg, Georges-Köhler-Allee 106, 79110 GermanyFind this author on Google ScholarFind this author on PubMedSearch for this author on this siteORCID record for Florian HeylFor correspondence: heylf@informatik.uni-freiburg.de backofen@informatik.uni-freiburg.de

      This work has been peer reviewed in GigaScience, which carries out open, named peer-review. These reviews are published under a CC-BY 4.0 license and were as follows:

      Reviewer 1. (Eric Van Nostrand) http://dx.doi.org/10.5524/REVIEW.102771 Reviewer 2. (Nejc Haberman) http://dx.doi.org/10.5524/REVIEW.102769<br> Reviewer 3. (William Lai) http://dx.doi.org/10.5524/REVIEW.102770

  2. Jun 2021
  3. gigabytejournal.com gigabytejournal.com
  4. May 2021
  5. Apr 2021
  6. Mar 2021
  7. Feb 2021
  8. Jan 2021
  9. Dec 2020
    1. The tutorials from the Galaxy Training Network along with the frequent training workshops hosted by the Galaxy community provide a means for users to learn, publish, and teach single-cell RNA-sequencing analysis.

      See the write-up by the Earlham Institute for more on how this training is going on

  10. Oct 2020
  11. Aug 2020
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  13. Jun 2020
  14. May 2020
  15. rvhost-alpha.rivervalleytechnologies.com rvhost-alpha.rivervalleytechnologies.com
    1. Katherine James Natural History Museum, Department of Life Sciences,Cromwell Road, London SW7 5BD, UK Search for other works by this author on: Oxford Academic Google Scholar Katherine James, Emma Betteridge Wellcome Sanger Institute, Cambridge CB10 1SA, UK Search for other works by this author on: Oxford Academic Google Scholar

      This Q&A features some discussion of her contribution to this project

  16. Apr 2020
    1. Timothy P L Smith US Meat Animal Research Center, US Department of Agriculture, State Spur 18D, Clay Center, NE 68933, USA Correspondence address. Timothy P. L. Smith, US Meat Animal Research Center, US Department of Agriculture, Clay Center, NE 68933, USA. E-mail: tim.smith2@usda.gov   http://orcid.org/0000-0003-1611-6828 Search for other works by this author on: Oxford Academic Google Scholar Timothy P L Smith

      See the Q&A with Benjamin Rosen and Timothy Smith in GigaBlog for more insight http://gigasciencejournal.com/blog/dna-day-2020-cattle-reference-genome/

  17. Mar 2020
    1. Table S1. Online tools for TALEN and CRISPR/Cas9. Collected online tools for TALEN and CRISPR/Cas9 are presented in this table. Updates can be accessed in GitHub [107]. Table S2. Commercial service for TALEN and CRISPR/Cas9. Collected commercial service for TALEN and CRISPR/Cas9 are presented in this table. Updates could can accessed in GitHub [107]. Table S3. Representative applications of genome editing. A summary of the representative applications in different organisms.

      Given that new methods, kits, and services continue to be rapidly developed and updated, an editable version we set up on Github wiki, and readers encourage to update it. See https://github.com/gigascience/paper-chen2014/wiki

  18. Feb 2020
  19. Oct 2019