Determination of the karyotype of the giant anteater Myrmecophaga tridactyla (Myrmecophagidae: Xenarthra) using classical and molecular cytogenetic techniques

Figures & data

Table I. List of studied individuals with their respective sex and localities of provenance.

	Provenance
Individual no.	Locality	Province	Sex
1	Dto. Alberdi	Sgo. del Estero	M
2	Monte Rico	Sgo. del Estero	M
3	Monte Quemado	Sgo. del Estero	M
4	Pampa de los Guanacos	Sgo. del Estero	F
5	Campo Gallo	Sgo. del Estero	M
6	Copo	Sgo. del Estero	M
7	Dto. Alberdi	Sgo. del Estero	F
8	El Caburé	Sgo. del Estero	M
9	Pje Monte Rico	Sgo. del Estero	F
10	Los Pirpintos	Sgo. del Estero	F
11	Sacha yo	Sgo. del Estero	F
12	Copo	Sgo. del Estero	F
13	Pampa del Infierno	Chaco	M
14	Roque Saenz Peña	Chaco	M
15	Roque Saenz Peña	Chaco	F
16	Gral. Pinedo	Chaco	M
17	Roque Saenz Peña	Chaco	F
18	Quitilipi	Chaco	F
19	L. Cabral	Salta	M
20	La esperanza	Salta	F
21	San Agustín	Salta	F
22	Curva del Turco	Salta	F
23	El Mistol	Salta	F
24	Las Flores	Salta	F
25	Las Lajitas	Salta	F
26	Tostado	Santa Fe	M*

* Meiotic bivalent and sex chromosome analysis.

Figure 1. (a), Karyotype of a male Myrmecophaga tridactyla from Alberdi, Province of Santiago del Estero. (b), G-banded karyotype of M. tridactyla from Copo, Province of Santiago del Estero. (c), Ideogram of a male M. tridactyla based on the G-banded karyotype Scale bars: 10 µm.

Figure 2. (a), C-banded karyotype of a male Myrmecophaga tridactyla from the Province of Santiago del Estero, showing centromeric C+ heterochromatin. (b), NOR-banded karyotype of a male M. tridactyla from the Province of Salta. Identification of the NORs (Arrowhead). (c), SC karyotype of a male M. tridactyla from Tostado, Province of Santa Fe. Each bivalent is represented by 1 SC immunolabeled with anti-SMC3 (red), anti-kinetochore (yellow). (d), Metaphase plate of a male M. tridactyla from the Province of Salta, showing the location of the telomeric probes. The chromosomes were counterstained with DAPI. Scale bars: 10 µm.