Ancestral range estimation
We defined the following six biogeographical areas of Diestramimaaccording to their known distributions and the zoogeographic
regionalization of China (Zhang et al ., 2011): A. mountainous
region of southern Yunnan (Baoshan city, Xishuangbanna Dai autonomous
prefecture, south of Ailaoshan in Yuxi city, Puer city, Honghe Hani &
Yi autonomous prefecture, west of Wenshan Zhuang & Miao autonomous
prefecture); B. mountainous hilly region of Yunnan and Guangxi (east of
Wenshan Zhuang & Miao autonomous prefecture, Baise city, Chongzuo city,
Fangchenggang city, Nanning city); C. low mountainous hilly region of
Guangxi, Guizhou and Hunan (Hechi city, Liuzhou city, Guilin city, south
of Qiannan Buyi & Miao autonomous prefecture, east of Qiandongnan Miao
& Dong autonomous prefecture, east of Hunan province); D. Sichuan basin
(most of Chongqing city and east of Sichuan province); E. Jiangnan hilly
region (southeast of Hunan, Xianning city in Hubei, most of Jiangxi,
north of Fujian, most of Zhejiang); F. mountainous hilly region of
Fujian and Guangdong (east of Guangxi province, north of Guangdong
province, south of Fujian province).
Ancestral ranges were reconstructed using RASP 4.0 (Yu et al .,
2020) beta. As a guide tree for statistical
dispersal-extinction-cladogenesis (S-DEC; Beaulieu et al ., 2013)
analyses, we removed all outgroups and constructed a phylogenetic tree
for the genus Diestramima . Modify and guide this tree according
to the maximum credibility tree from the BEAST analysis. Ancestral areas
were limited to no more than three areas. Statistical
dispersal-vicariance (S-DIVA; Yu et al ., 2010) analysis were
performed based on a sample of 1000 random post burn-in RASP trees and
use the final tree. The maximum number of ancestral areas was limited to
three.