New Post: productlist template structure

<table id="dnn_ctr560_ProductList_dlProductList" class="ProductList" cellspacing="0" cellpadding="0" style="width:100%;border-collapse:collapse;">
<tbody>
<tr>
<td class="ListCell_ari" valign="top" align="center" style="height:100%;">
<td class="ListCell_ari" valign="top" align="center" style="height:100%;">
<td class="ListCell_ari" valign="top" align="center" style="height:100%;">
<td class="ListCell_ari" valign="top" align="center" style="height:100%;">
</tr>

From productlist.template the bolded portion is comming.
I wanna know from where the <tr> is comming??
is their any template is present for it ??