[Bioperl-l] GenBank gene field

[Alexander Kozik]

Please take a look on two sample records from GenBank files (Arabidopsis 
and C.elegans)
C.elegans file has "/gene" entries for both "gene" and "CDS" fields. 
Arabidopsis file has no "/gene" entries at all.
Previous version of Arabidopsis GenBank file was with "/gene" entries.
Could you help to understand why it happens and what entry you suggest 
to extract if user is interested in extraction of corresponding gene names.
Do I use terms "entry" and "field" properly?

Thanks a lot in advance,

Alexander Kozik
Bioinformatics Specialist
Genome and Biomedical Sciences Facility
451 East Health Sciences Drive
University of California
Davis, CA 95616-8816
Phone: (530) 754-9127
email: akozik at atgc.org
web: http://www.atgc.org/

----

Arabidopsis GenBank file NC_003070.gbk:

     gene            complement(38753..40944)
                     /locus_tag="At1g01070"
                     /note="synonym: T25K16.7; nodulin MtN21 family protein"
                     /db_xref="GeneID:839550"
...
     CDS             complement(join(38898..39054,39136..39287,39409..39814,
                     40213..40329,40473..40535,40675..40877))
                     /locus_tag="At1g01070"
                     /note="similar to MtN21 GI:2598575 (root nodule
                     development) from [Medicago truncatula]"
                     /codon_start=1
                     /protein_id="NP_563617.1"
                     /db_xref="GI:18378792"
                     /db_xref="GeneID:839550"
                     /translation="MAG...
----

C.elegans GenBank file NC_003279.gbk:

     gene            43733..44677
                     /gene="1A519"
                     /locus_tag="1A519"
                     /synonym="Y74C9A.1"
                     /note="Title: Caenorhabditis elegans expressed gene
                     1A519."
...
     CDS             
join(43733..43961,44030..44234,44281..44328,44521..44677)
                     /gene="1A519"
                     /locus_tag="1A519"
                     /codon_start=1
                     /product="putative protein (1A519)"
                     /protein_id="17510627"
                     /db_xref="GI:17510627"
...