Table 2 Chromosomal distribution of DNA repeats (satDNA and rDNA sequences) on the LPE and LPA chromosomes

From: Investigating the evolution of large meiotic rings of multiple X and Y sex chromosomes in two Leptodactylus frog species (Anura, Leptodactylidae)

 

Numbers of chromosomes with hybridization sites

DNA repeat

Locations in LPE

Locations in LPA

LpeSat01

All 10 chromosomes in the ring + 6 bivalents (t)

All 8 chromosomes in the ring + 7 bivalents (t)

LpeSat02

All 10 chromosomes in the ring + 4 bivalents (t)

4 chromosomes in the ring + 2 bivalents (t)

LpeSat03

All 10 chromosomes in the ring + 6 bivalents (c)

2 chromosomes in the ring + 1 bivalent (c)

LpeSat04

All 10 chromosomes in the ring + 2 bivalents (pc and t)

All 8 chromosomes in the ring + 7 bivalents (pc and t)

LpeSat09

2 chromosomes in the ring (pair 7)

 + 2 bivalents (pc and t)

No signal

LpeSat36

Only a single bivalent (t)

No signal

LpeSat48

Only a single bivalent (t)

No signal

LpeSat74

Only a single bivalent (t)

No signal

LpeSat80

Only 1 chromosome in the ring (one homologue of chromosome pair 3) (t)

No signal

LpeSat91

Only 2 chromosomes in the ring (pair 4) (t)

No signal

LpeSat100

Only 2 chromosomes in the ring (pair 3) (t)

No signal

18S rDNA

Only one bivalent (t)

Only one bivalent (t)

5S rDNA

Only 2 chromosomes in the ring (single homologues of each of chromosome pairs 3 and 5) (t)

Only one bivalent (t)

  1. Bold font indicates the DNA repeats that identify individual chromosomes in the LPE decavalent meiotic ring. The regions where repeats were detected are indicated as follows: telomeric regions (t), centromeric regions (c), and pericentromeric regions (pc).