Check for CDS not null before running WGD.

main.nf

@@ -227,6 +227,7 @@ species_new_id
 cdsMap = species_cds_map
     .reduce([:]) { theMap, newMapping -> theMap[newMapping.name] = newMapping.cds; return theMap } 
 
+print(cdsMap)
 
 allSpecies
     .collectSpeciesFile()
@@ -1045,7 +1046,7 @@ process clime {
 //not supply a CDS file.
 allVsAllProteomeBlasts_wgd
     .filter { it[1] == newSpeciesId.value }
-    .filter { cdsMap[it[1]].value != '' && cdsMap[it[2]].value != '' }
+    .filter { cdsMap[it[1]] && cdsMap[it[2]] }
     .set { new_species_blasts }