Multiple isoforms of the DrosophilaSpƤtzle protein are encoded by alternatively spliced maternal mRNAs in the precellular blastoderm embryo DeLotto, Y.; Smith, C.; DeLotto, R. Molecular Genetics and Genomics 264(5): 643-652 2001 1617-4615 10.1007/s004380000350 https://eurekamag.com/research/063/003/063003374.php