[Treesoft-treefam] Explore a family tree

[Sebastien M. <seb...@un...>]

Hi,

we explore a lot of TreeFam trees to get, by example, Euteleostomi 
sub-trees.
	$tree->get_nodes_by_tag_value(-S=>'Euteleostomi');

It works perfectly with the API except when there is no Euteleostomi 
node in the whole tree. The API returns nothing (that is the right thing 
I think so) but sometimes, a Tetrapoda node is available.


So, my question is how to explore trees with child taxa of Euteleostomi 
when Euteleostomi is absent ?
With Tetrapoda, else with Theria, else with Eutheria, ...
Via the API or via MySQL.

We could hard-code child taxa names but this will not be clean.

An idea ?
Thanks

-- 
Sébastien Moretti