No, unfortunately the EMBO Journal uses a different style than EMBO reports/Nature. For example, the citations in the text are (Author, Year) and the bibliography is in alphabetical order, with the year in parenthesis after the authors, not at the end...
Here's the "guide for authors": http://www.nature.com/emboj/about/authors.html

I'll try to find a simila style that's already available, but it would be great if the style could eventually be added!

OK, here's what I got:

The closest style I could find is Cell Journal. Here's a list of examples for comparison and a list of all diferences that I could find. Since the authors guides don't specify web site citations, and I couldn't find them in the journals, I don't know how they should look like - no change from Cell is probably the safest bet for now.

Author's Guides:
Cell: http://www.cell.com/authors#gen_specs

EMBO: http://www.nature.com/emboj/about/authors.html#a3.8

Style used in EMBO:
Reference in text:
(Author, Year)
(Author & Author, Year)

or, if more than two authors:
(Author et al, Year)
[no dot after “et al”!]

For multiple citations at once:
(Ferrier & Lunkes, 2003; Wiersdorff et al, 2000)

Style for reference list:
- No numbering
- in alphabetical order, then chronologically
- with the authors' surnames and initials inverted
- et al only for more than 20 authors
- Publications by the same author(s) in the same year should be identified with a, b, c after the year of publication
- The name of each journal should be abbreviated according to Index Medicus and italicized


Article in a periodical:
Cell:
Sondheimer, N., and Lindquist, S. (2000). Rnq1: an epigenetic modifier of protein function in yeast. Mol. Cell 5, 163–172.

EMBO:
Akhmedkhanov A, Toniolo P, Zeleniuch-Jacquotte A, Koenig KL, Shore RE (2002) Aspirin and lung cancer in women. Br J Cancer 87: 49-53

Differences:
- Remove all dots, leave only the one after the title
- Add colon after volume
- Set title in italic
- Set volume in bold

Article in a book:
Cell:
King, S.M. (2003). Dynein motors: Structure, mechanochemistry and regulation. In Molecular Motors, M. Schliwa, ed. (Weinheim, Germany: Wiley-VCH Verlag GmbH), pp. 45–78.

EMBO:
Sambrook J, Fritsch E & Maniatis T (1989) Molecular Cloning: A Laboratory Manual. Cold Spring Harbour Press, Cold Spring Harbour, New York, USA

Differences:
- As with journal articles: no dots except after title
- Sequence of items after title (separated by commata as shown):
[Publisher], [Place], [Country]

Thanks!

OK - there is now a pretty much correct EMBO Journal style in the repository - should show up soon (as "EMBO Journal" rather than "The EMBO Journal")
I say pretty much because their citation guide is a total mess, so I had to use some guesswork about what they want - but everything they're consistent about is now correct.

The style looks very good! There's one (very minor) deviation from the "original": in the bibliography, the colon after the issue number should be bold (same as the issue number itself, which already is bold).

I had a look at the code, I guess the problem is that the group ":" is not affected by the font style/weight of the preceeding "volume" element. I pasted the affected part of the style code below (from the bibliography section), I guess you'll know the best way to get that colon to be bold.

<group class="container" delimiter=": " prefix=" " suffix="">
<group delimiter=" ">
<text variable="container-title" form="short" font-style="italic"/>
<text variable="volume" font-weight="bold"/>
</group>

ok fixed both, should be up on the repository soon - update by re-installing once you see the new timestamp.

yeah, that I knew, but it's not currently possible in Zotero. Will be soon, though.

OK, the updated style (including et al in italics) is now on the new csl 1.0 repository at https://github.com/citation-style-language/styles and will eventually move to citationstyles.org

oh drat. I forgot those changes weren't on github yet. uhm - I'll fix the access macro on github so we can just not change any of the styles that have been updated on github. Will pay more attention with other styles.