rm18b01.y1 Meloidogyne arenaria egg pAMP1 v1 Chiapelli McCarter Meloidogyne arenaria cDNA 5' similar to SW:YOL4_CAEEL Q02331 HYPOTHETICAL 152.4 KDA PROTEIN ZK370.4 IN CHROMOSOME III. [2] SW:YOL4_CAEEL, mRNA sequence