<p>I obtained a genome from NCBI. For instance, Haloquadratum walsbyi strain AM180088.1. But the FASTA file contain two parts. The first part marked as </p>

<p><strong>>AM180088.1 Haloquadratum walsbyi DSM 16790 complete genome</strong></p>

<p>The second part marked as</p>

<p><strong>>AM180089.1 Haloquadratum walsbyi DSM 16790 plasmid PL47 complete genome</strong></p>

<p>What does that mean? In particular, the second one "plasmid"? If it is called complete genome should it all in one? Why divide into parts?</p>

CC BY-SA 4.0
2019-04-03T23:41:53.370Z
Archea can have plasmids last time I checked...
Devon Ryan
CC BY-SA 4.0
2019-04-03T23:44:02.630Z
what does that mean? So, plasmid have different gene from other part of archaea?
qna
CC BY-SA 4.0
2019-04-03T23:49:08.683Z
Yes, bacteria and sometimes both archea and eukaryotes can have plasmids (google the term if you don't know it) in addition to their normal genome.
Devon Ryan
CC BY-SA 4.0
2019-04-03T23:53:53.240Z
I know they have plasmid. But will the plasmid have different gene from the bacteria/archaea itself?
qna
CC BY-SA 4.0
2019-04-04T05:17:11.943Z
Typically, yes.
Devon Ryan
CC BY-SA 4.0
2019-04-04T08:03:14.483Z
I'm voting to close this question as off-topic and not worth migrating to the biology stackexchange.
Devon Ryan
<genome>
What does this genome file from NCBI means?
# What does this genome file from NCBI means?

(Asked by: username_0 on 2019-04-03)

I obtained a genome from NCBI. For instance, Haloquadratum walsbyi strain AM180088.1. But the FASTA file contain two parts. The first part marked as

**>AM180088.1 Haloquadratum walsbyi DSM 16790 complete genome**

The second part marked as

**>AM180089.1 Haloquadratum walsbyi DSM 16790 plasmid PL47 complete genome**

What does that mean? In particular, the second one "plasmid"? If it is called complete genome should it all in one? Why divide into parts?

**Tags:** genome
> **Comments:**
> **username_1**: Archea can have plasmids last time I checked...  
> **username_0**: what does that mean? So, plasmid have different gene from other part of archaea?  
> **username_1**: Yes, bacteria and sometimes both archea and eukaryotes can have plasmids (google the term if you don't know it) in addition to their normal genome.  
> **username_0**: I know they have plasmid. But will the plasmid have different gene from the bacteria/archaea itself?  
> **username_1**: Typically, yes.  
> **username_1**: I'm voting to close this question as off-topic and not worth migrating to the biology stackexchange.  

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