Body: <p>I'm trying to extract the host field from the features table using the <a href="https://github.com/gschofl/biofiles" rel="nofollow noreferrer">biofiles</a> package. From what I understand, the function filter (from the same package) could be of help but I can't extract the information of interest. This is the simplified series of steps that I'm following:</p>
  <pre><code>library(biofiles)
  x_search &lt;- reutils::esearch(db = &quot;nuccore&quot;, #retmax = 9999,
               term = &quot;((bacteria[ORGN]) AND host[ALL]) AND Loripes[ALL]&quot;)
  
  x_fetch &lt;- reutils::efetch(x_search[1:3], &quot;nuccore&quot;,rettype = &quot;gbwithparts&quot;, 
              retmode = &quot;text&quot;)
  
  x_rec &lt;- biofiles::gbRecord(x_fetch)
  
  x_ft &lt;- biofiles::getFeatures(x_rec)
  
  x_ft[1]
  </code></pre>
  <p>The last output should show the list of features for that entry, including the source with the qualifier &quot;host&quot;, which I would like to retrieve for all the ids.</p>
  <p>EDIT: I'm open to solutions outside the biofiles package.</p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2021-02-01T20:21:45.767Z
Comments.Text: Easy with biopython if Ur open to answers outside of R
Comments.UserDisplayName: Liam McIntyre
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2021-02-23T12:29:56.237Z
Comments.Text: @LiamMcIntyre Sure! I would like to know your suggestion.
Comments.UserDisplayName: Lumimoto
Tags: <r><genbank>
Title: How can I retreive specific qualifiers from genbank files in R?
ThreadText: # How can I retreive specific qualifiers from genbank files in R?
  
  (Asked by: username_0 on 2021-02-01)
  
  I'm trying to extract the host field from the features table using the [biofiles](https://github.com/gschofl/biofiles) package. From what I understand, the function filter (from the same package) could be of help but I can't extract the information of interest. This is the simplified series of steps that I'm following:
  
  ```
  library(biofiles)
  x_search <- reutils::esearch(db = "nuccore", #retmax = 9999,
               term = "((bacteria[ORGN]) AND host[ALL]) AND Loripes[ALL]")
  
  x_fetch <- reutils::efetch(x_search[1:3], "nuccore",rettype = "gbwithparts", 
              retmode = "text")
  
  x_rec <- biofiles::gbRecord(x_fetch)
  
  x_ft <- biofiles::getFeatures(x_rec)
  
  x_ft[1]
  
  ```
  
  The last output should show the list of features for that entry, including the source with the qualifier "host", which I would like to retrieve for all the ids.
  
  EDIT: I'm open to solutions outside the biofiles package.
  
  **Tags:** r, genbank
  
  > **Comments:**
  > **username_1**: Easy with biopython if Ur open to answers outside of R  
  > **username_0**: @username_1 Sure! I would like to know your suggestion.  
  
  ---
  
  ## 0 answers
  
  