Biswamoyopterus sp. L35

Li, Guogang, Lwin, Ye Htet, Yang, Bin, Qin, Tao, Phothisath, Phouthong, Maung, Kyaw-Win, Quan, Rui-Chang & Li, Song, 2020, Taxonomic revision and phylogenetic position of the flying squirrel genus Biswamoyopterus (Mammalia, Rodentia, Sciuridae, Pteromyini) on the northern Indo-China peninsula, ZooKeys 939, pp. 65-85 : 65

publication ID

https://dx.doi.org/10.3897/zookeys.939.31764

publication LSID

lsid:zoobank.org:pub:CDB10133-5AC4-40CF-91C7-EE9A81CDB77F

persistent identifier

https://treatment.plazi.org/id/45C70733-0599-57C7-BF11-7B2D5090D7BD

treatment provided by

ZooKeys by Pensoft

scientific name

Biswamoyopterus sp. L35
status

 

Morphological description of Biswamoyopterus sp. L35 Table 3 View Table 3 , Suppl. material 2: Figure S1

Remarks.

The sample L35 from northern Laos shares the same pelage color of the tuft hair at the base of the ear and side of the neck (Figure 5 View Figure 5 , Suppl. material 2: Figure S1) with the Biswamoyopterus laoensis specimen (NUoL FES. MM.12.163) from central Laos. However, specimen M644 from northern Myanmar shares some key characters that have been used to distinguish the three known species from each other (Figures 4 View Figure 4 - 7 View Figure 7 , Table 3 View Table 3 ): its large body size and long muzzle are similar to B. laoensis (NUoL FES. MM.12.163) from central Laos; the coloration of venter, tail, and ear tufts could pertain to either B. biswasi (specimen ZSI 20705) from northeastern India or B. gaoligongensis (specimen KIZ 034924) from southwestern China, which are very similar.

Phylogeny and genetic divergence.

Maximum Likelihood and Bayesian Inference analyses of the combined sequences of nuclear gene IRBP (1070 bp), mitochondrial 12S (823 bp), and 16S (535 bp) ribosomal DNA recovered similar tree topologies. The results showed that Eupetaurus , Aeromys , and Biswamoyopterus (sample M644 from Putao, northern Myanmar, and L35 from Louang Namtha, northern Laos) as a reciprocally monophyletic clade (Figure 8 View Figure 8 ). Within this clade, Aeromys and Biswamoyopterus form sister groups with strong support (Figure 8 View Figure 8 ).

For the nuclear gene IRBP, the range of original intergeneric (14 genera excluding the genus Biswamoyopterus ) variation was 0.51-5.47% (Table 4 View Table 4 ). The genetic distances between Biswamoyopterus and other genera ranged from 1.57 to 5.27% (Table 4 View Table 4 ), which is greater than many intergeneric variations, such as 0.51% for Aeretes and Trogopterus , 1.46% for Belomys and Pteromyscus , and 1.46% for Pteromyscus and Trogopterus . In the genus Biswamoyopterus , the genetic distance between M644 and L35 was 0.09%, which is smaller than the range of other interspecific variations (0.51-5.45%), close to 0.13% for intraspecific variations of Pteromyscus pulverulentus .

For the mitochondrial 16S ribosomal DNA sequences, the range of original intergeneric variation was 2.9-14.6% (Table 5 View Table 5 ). The genetic distances between Biswamoyopterus and other genera ranged from 5.2 to 12.8% (Table 5 View Table 5 ), which is greater than some intergeneric variations, such as 2.9% for Aeretes and Trogopterus . In the genus Biswamoyopterus , the genetic distance between M644 and L35 was 0.6%, which is really much smaller than the range of other interspecific variations (2.9-14.6%), close to 0.4% for intraspecific variations of Petaurista philippensis , and the same as 0.6% of Pteromys volans .

Kingdom

Animalia

Phylum

Chordata

Class

Mammalia

Order

Rodentia

Family

Sciuridae