Soap response timing out from .net web service

[McIndoeLab]

I am using .net Web Service to get SOAP response back to a consuming ASP.NET
web page. My object model has a class called Strain. I have a Web Service
class with exposed method GetStrains(int strainID) that returns an array of
strain objects as a SOAP response when provided with a strainID.
The method works fine when I choose to XML ignore the atribute
MaternalStrain in the Strain class in the object model but times out/fails
when I choose to include it. My guess is that it is timing out because of the
recursive nature of the call --->for a strain object, there is a Maternal
Strain, which is also a strain object ..)
Is there a work around this problem like if I could tell it not to go deeper
than 1 level of recursion .. The Strain class is provided below..I will
appreciate your help
---------------------------------------------------------------------------------------------
namespace Model
{
[Serializable]
[XmlInclude(type of(Strain))]
[XmlRoot(Element Name="Strain")]
public class Strain : DomainObject
{
int mBreedingGenera tions = 0;

Strain mMaternalStrain ;
public Strain()
{}

[XmlIgnore]

public Strain MaternalStrain
{
get
{
return (mMaternalStrai n==null ? (mMaternalStrai n = new
Strain()): mMaternalStrain );
}
set
{
mMaternalStrain = value;
}
}
public int BreedingGenerat ions
{
get
{
return mBreedingGenera tions;
}
set
{
mBreedingGenera tions = value;
}
}
}