XmlText Serializing/Deserializing problem

//using System.Xml.Serialization;

void Main()
{
   Root root = Root.Create();

           //spaces correct here
   string saveFile = SaveAndOpen(root);

           //spaces incorrect here
   Root reRoot = FromFile(saveFile);
   SaveAndOpen(reRoot);
}

public string SaveAndOpen(Root root)
{
   XDocument doc = SerializeToXml(root);
   string saveFile = Path.GetTempFileName() + ".xml";
   doc.Save(saveFile);
   Process.Start(saveFile);
   return saveFile;
}

public static Root FromFile(string file)
{
   XmlSerializer serializer = new XmlSerializer(typeof(Root));

   XmlReaderSettings settings = new XmlReaderSettings();
   XmlReader reader = XmlTextReader.Create(file, settings);

   Root root = serializer.Deserialize(reader) as Root;
   return root;
}

public XDocument SerializeToXml(Root obj)
{
   XmlSerializer serializer = new XmlSerializer(typeof(Root));
   XDocument doc = new XDocument();
   using (var writer = doc.CreateWriter())
   {
           serializer.Serialize(writer, obj);
   }

   return doc;
}

[XmlRoot("root")]
public class Root
{
    [XmlText(typeof(string))]
    [XmlElement("tag", typeof(Tag))]
    public List<object> Elements { get; set; }

    //this is simply for the sake of example
    public static Root Create()
    {
        Root root = new Root();

        root.Elements.Add("Leading text ");
        root.Elements.Add(new Tag() { Text = "tag1" });
        root.Elements.Add("    ");
        root.Elements.Add(new Tag() { Text = "tag2" });

        return root;
    }

    public Root()
    {
        Elements = new List<object>();
    }
}

public class Tag
{
   [XmlText]
   public string Text {get;set;}
}