TY - RPRT TI - Turtle IgD2 preserves an ancestral IgXA-derived XA3-XA4 module in a duplicated and locally remodeled IgD2-IgY constant-region2 array AU - Gambon Deza, F. PY - 2026 DO - 10.64898/2026.07.17.739153 UR - https://www.biorxiv.org/content/10.64898/2026.07.17.739153v1 ID - 10.64898/2026.07.17.739153 ER -