Add nterm for: complex ZW

I do not agree with this explanation since it does not provide a clear distinction between multiple sex chromosome systems (which have some specific definition) and complex sex chromosome systems. Please, see my defined term "multiple sex chromosomes" where I touch this issue. Particularly I copy the the relevant part here:

Exclude polygenic or polyfactorial sex determination (this is something different). Multiple sex chromosomes are usually monogenic but contain more chromosomes due to structural rearrangements (or as a consequence of aneuploidy). In case where "polygenic" means two sex chromosome systems in the transient state of sex chromosome turnover (i.e. previous sex chromosome system is still co-segregating with a new dominant sex chromosome system, such as e.g. in cichlids, e.g. Metriaclima pyrsonotus) I rather suggest to call it "complex sex chromosome system". The same may apply if there are populations with different sex chromosome systems and they mate and create different combinations of sex chromosome systems (such as e.g. in Glandirana rugosa, Xiphophorus maculatus, Xenopus tropicalis).

Tree-of-Sex / ToS-Ontology

Add nterm for: complex ZW #48

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