Table 1 - Characterization of the nuclear ribosomal DNA unit in Oxalis tuberosa (Oxalidacea) and related species

Table 1. Chromosome number and collection locality of the Oxalis species.

Species	Locality	2n	Herb No/ Acc. No
O. oblongiformis Knuthc	Perú, Amazonas, Chachapoyas, near Balsas	16	2917^a
O. peduncularis H.B.K.	Perú, Cajamarca, Cenedin, Quilimbash	16	2908^a
O. tabaconanensis Knuth^c	Perú, Amazonas, Bongara, near Pomacocha	16	2872^a
O. aff. villosula Knuth	Perú, Amazonas, Bongara, Churruja	16	2901^a
O. tuberosa MOL	Argentina, Salta, Santa Victoria	64	1074^b
O. tuberosa MOL	Argentina, Jujuy, Tumbaya	64	1018^b
O. tuberosa MOL	Argentina, Jujuy, Yavi	64	1051^b

^a BACP (Cefaprin, Buenos Aires).
^b CIP Germplasm and INTA- Cerrillos Germplasm.
^c In the last monography involving the taxonomic treatment of genus Oxalis published by Lourteig (2000), she considered O. oblongiformis synonymous to O. tabaconasensis. Despite her observation, we decided to use both names in this work, since the analysis of rDNA sequence organization of the “two species” showed that they differed considerably.

Supported by UNESCO / MIRCEN network

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