Due to hybridisation and breakdown of reproduction barriers the Java warty pig an endangered suid endemic to Java, may be assimilated into the gene pools of the more common Indonesian banded pig and become extinct. Here, we aimed to detect introgressive hybridisation between both suids by microsatellite genotyping warty pigs from two captive populations and from the wild, as well as a banded pig population. While all but one captive individual were genetically pure, we showed, in contrast to a previous survey based on skull measurements, that five wild-born warty pigs in West Java were hybrids. Moreover, we detected four F2 hybrids in the wild warty pig population (q_range 0.15–0.99) and one F2 hybrid in the wild banded pig population (q = 0.25), confirming reproductive fertility for F1 hybrids. Our results highlight the potential risk of extinction through hybridization and genetic swamping of the endangered warty pig.

由于杂交和繁殖障碍的破坏，爪哇疣猪是爪哇特有的一种濒临灭绝的suid，可能会被吸收到印度尼西亚更常见的带状猪的基因库中而灭绝。在这里，我们的目的是通过微卫星基因分型来自两个圈养种群和野生种群以及带状猪种群的疣猪检测两个suid之间的渗入性杂交。除了一个被俘虏的个体以外，所有个体都是基因纯净的，但与先前的基于头骨测量的调查相反，我们证明了西爪哇省的五头野生疣猪是杂种。此外，我们在野生疣猪种群中检测到4个F2杂种（q_范围0.15–0.99）和野生带状猪种群中的一个F2杂种（q = 0.25），证实了F1杂种的生殖繁殖力。我们的结果强调了濒临灭绝的疣猪通过杂交和基因沼泽灭绝的潜在风险。