Find species names (based on provided array of genus names) and add html tags for italics font

Italicize_species_Zotero.js

// See these instruction to enable js scripting in Zotero: 
// https://forums.zotero.org/discussion/comment/324734/#Comment_324734
var fieldName = "title";
var plantsPathogens = ["Cryptobranchus", "Fusarium", "Mycosphaerella", "Pochonia", "Pogona", "Nannizziopsis", "Armillaria", "Parastagonospora", "Pseudoperonospora", "Phytophthora", "Heterobasidion", "Cochliobolus", "Rhynchosporium", "Aspergillus", "Ascochyta", "Sclerotinia", "Botrytis", "Cicer", "Lens","Oryza", "Eucalyptus", "Arabidopsis", "Vigna", "Phaseolus", "Vicia"];
var aquaticSpecies = ["Oreochromis", "Dicentrarchus", "Pagrus", "Gonostoma","Tursiops", "Gadus", "Danio", "Acanthosentis", "Oryzias", "Seriola", "Cyprinus", "Euthynnus", "Solea", "Nibea", "Thunnus thynnus","Argyrosomus", "Thunnus", "Misgurnus", "Oncorhynchus", "Epinephelus", "Rachycentron", "Clarias", "Tetraodon", "Proterocara", "Latimeria", "Oithona", "Sarda", "Glaucosoma", "Scomberomorus", "Allium", "Aulopus", "Plecoglossus", "Anguilla", "Hoplias", "Poecilia", "Sardinops", "Cyprinus", "Acanthopagrus", "Mus", "Rana", "Chlamys", "Anas", "Nerita", "Nodipecten", "Megalobrama", "Squalus","Mytilus", "Scomber", "Acipenser", "Torpedo", "Takifugu", "Sparus","Morone", "Lepomis","Cichlasoma", "Limanda", "Polyprion","Chelon","Paralichthys" ,"Litopenaeus" ,"Rutilus","Ictalurus" ,"Pelteobagrus","Macrobrachium","Amphiprion","Arapaima", "Huso", "Sciaenops", "Lutjanus", "Perca", "Pangasius", "Latris","Scophthalmus", "Macquaria", "Pleuronectes", "Lates", "Clarias", "Salmo", "Pisum", "Pinctada", "Cristaria", "Mugil", "Chanos", "Pangasius", "Halichoeres"];
// Combine arrays and remove duplicates (see https://stackoverflow.com/a/1584377/5346827)
function arrayUnique(array) {
    var a = array.concat();
    for (var i=0; i<a.length; ++i) {
        for (var j=i+1; j<a.length; ++j) {
            if (a[i] === a[j])
                a.splice(j--, 1);
        }
    }

    return a;
}

// Merges both arrays and gets unique items
var speciesArray = arrayUnique(plantsPathogens.concat(aquaticSpecies));

for (var i=0; i < speciesArray.length; i++) {
	var subs=0;
	var oldValue = speciesArray[i];
	var fieldID = Zotero.ItemFields.getID(fieldName);
	var s = new Zotero.Search;
	s.addCondition(fieldName, 'contains', oldValue);
	var ids = s.search();
	if (ids) {
		for (index = 0; index < ids.length; ++index) {
			var item = Zotero.Items.get(ids[index]);
			var mappedFieldID = Zotero.ItemFields.getFieldIDFromTypeAndBase(item.itemTypeID, fieldName);
			var tempTitle = item.getField('title');
			var regExFilt = "(.+[^>])(" + oldValue + " \\w+)(([^w]*\\w?$))";
			var re = new RegExp(regExFilt , "g");
//			alert( "regex match: " + tempTitle.match( re ) );
			if ( !!tempTitle.match( re ) ){
				subs++;
			}
			var newValue = tempTitle.replace(re, '$1<i><span class="nocase">$2</span></i>$3');
			item.setField(mappedFieldID ? mappedFieldID : fieldID, newValue);
			item.save();
		}
		if ( subs>0 ){
			alert(subs + " items updated for genus: " + oldValue);
		} // else {
		// alert("No items found");
	// }
	
	}
}

Updated to add tags to retain letter case (avoid capitalisation of species name) in titles