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. 2025 Aug 22;15:30850. doi: 10.1038/s41598-025-15184-5

Table 2.

ISSR and RAPD primers used for PCR amplification to evaluate genetic diversity in walnut genotypes distributed in inner Anatolia region Türkiye.

ISSR Primers Code DNA Sequences (5’−3’) Tm oC Ta oC PCR amplification
UBC-808 5′-AGAGAGAGAGAGAGAGC-3′ 52 49

94 °C–3 min

94 °C–1 min

48–53 °C 1 min

72 °C–1 min

72 °C–10 min

35 cycles

UBC-810 5′-GAGAGAGAGAGAGAGAT-3′ 50 47
UBC-811 5′-GAGAGAGAGAGAGAGAC-3′ 53 50
UBC-826 5′-ACACACACACACACACC-3′ 52 48
UBC-831 5′-CTCTCTCTCTCTCTCTT-3′ 50 48
UBC-834 5′-AGAGAGAGAGAGAGAYT-3′ 52 50
UBC-836 5′-AGAGAGAGAGAGAGAGYA-3′ 52 50
UBC-873 5′-GACAGACAGACAGACA-3′ 48 46
UBC-880 5′-GGAGAGGAGAGGAGA-3′ 55 53
RAPD Primers Code
OPA-2 5′-TGCCGAGCTG-3′ 34 32

94 °C–3 min

94 °C–1 min

30–32 °C 1 min

72 °C–1 min

72 °C–10 min

35 cycles

OPA-5 5′-AGGGGTCTTG-3′ 32 30
OPA-7 5′-GAAACGGGTG-3′ 32 30
OPA-18 5′-AGGTGACCGT-3′ 32 30
OPA-20 5′-GTTGCGATCC-3′ 32 30

Tm = melting temperature, Ta = annealing temperature.