Number of chromosomes.

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+[[!meta title="Chromosome form and number in the larvacea"]]
+[[!tag Oikopleura]]
+
+Colombera D. & Fenaux R.
+
+Italian Journal of Zoology, 40:3-4, 347-353
+
+Chromosome form and number in the larvacea
+
+[[!doi 10.1080/11250007309429248 desc="Reports 16 chromosomes in meiotic cells (8 haploid chromosomes)."]]

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+[[!meta title="Untersuchungen über die Gehäusebildung bei Appendicularien (Oikopleura dioica Fol)"]]
+[[!tag Oikopleura]]
+
+Wilhelm Friedrich Körner
+
+Zeitschrift für Morphologie und Ökologie der Tiere Vol. 41, No. 1 (20.Mai 1952), pp. 1-53 
+
+Untersuchungen über die Gehäusebildung bei Appendicularien (Oikopleura dioica Fol)
+
+[Reports 3 haploid chromosomes in sperm and oocytes, one beign longer than the others.  Also reports an observation of 7 chromosomes in a somatic mitotic cell.](https://www.jstor.org/stable/43261846)

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+++ b/tags/Oikopleura.mdwn
@@ -38,8 +38,12 @@ Phylogeny
 Genome
 ------
 
+ - Germ cells contain 3 haploid chromosomes ([[Körner, 1952|biblio/43261846]]).
+   There are also intriguing observations of somatic mitotic cells with 7
+   chromosomes (([[Körner, 1952|biblio/43261846]]) and meiotic cells with
+   8 haploid chromosomes [[Colombera & Fenaux, 1973|biblio/10.1080_11250007309429248]]).
  - Each cell only contains 70 fg of DNA ([Animal Genome Size Database](http://www.genomesize.com/result_species.php?id=1308)).
- - Size estimated to 72 ± 13 Mb (min 32.6~65 Mb) by [[Seo et al,
+ - Genome size estimated to 72 ± 13 Mb (min 32.6~65 Mb) by [[Seo et al,
    2001|biblio/11752568]].  A 70.4 Mb genome "reference assembly" was later
    produced from the shotgun sequencing of sperm DNA from ~200 partially inbred
    males (11 successive sib-matings).  Two distinct haplotypes were found