Table 1 Sample information on South China indigenous pigs, North China indigenous pigs and Asian wild boars

North China indigenous pig breeds

Min

16

Suihua City, Heilongjiang Province

Laiwu

6

Laiwu City, Shandong Province

Hetaodaer

7

Bayannur City, Inner Mongolia Autonomous Region

Bamei

11

Yulin City, Shaanxi Province

South China indigenous pig breeds

Liangguangxiaoerhua

Luchuan

17

Luchuan County, Yulin City, Guangxi Zhuang Autonomous Region

Guangdongxiaoerhua

10

Suixi County, Zhanjiang City, Guangdong Province

Hainan

Tunchan

10

Tunchang County, Hainan Province

Dingan

10

Ding’an County, Hainan Province

Bamaxiang

16

Bama County, Guangxi Zhuang Autonomous Region

Asian wild boars

30

/

Sum.

133