Niviventer confucianus sacer (Rodentia, Muridae) is a distinct species based on molecular, karyotyping, and morphological evidence

Niviventer confucianus sacer Thomas, 1908, which has been regarded as a subspecies of N. confucianus, was found to be a distinct species from N. confucianus based on molecular, karyotyping, and morphological characteristics in this study. Niviventer c. sacer was found to belong to a distinct phyloge...

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Main Authors: Yaoyao Li, Yiqiao Li, Haotian Li, Jing Wang, Xiaoxiao Rong, Yuchun Li
Format: Article
Language:English
Published: Pensoft Publishers 2020-08-01
Series:ZooKeys
Online Access:https://zookeys.pensoft.net/article/53426/download/pdf/
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author Yaoyao Li
Yiqiao Li
Haotian Li
Jing Wang
Xiaoxiao Rong
Yuchun Li
author_facet Yaoyao Li
Yiqiao Li
Haotian Li
Jing Wang
Xiaoxiao Rong
Yuchun Li
author_sort Yaoyao Li
collection DOAJ
description Niviventer confucianus sacer Thomas, 1908, which has been regarded as a subspecies of N. confucianus, was found to be a distinct species from N. confucianus based on molecular, karyotyping, and morphological characteristics in this study. Niviventer c. sacer was found to belong to a distinct phylogenetic clade in phylogenetic tree constructed using the mitochondrial gene Cytb, it clustered with N. bukit (Bonhote, 1903) from Vietnam and N. confucianus (Milne-Edwards, 1871) from Yunnan, but showed a distant relationship with N. confucianus from adjacent areas. The genetic distance between N. c. sacer and N. confucianus was more than 5.8%, reaching the level of interspecific differentiation. The species delimitation indicates that N. c. sacer is a monophyletic group. The karyotype of N. c. sacer (FN = 55, 8m+4st+32t+X(sm)Y(t)) differed from that of N. confucianus (FN = 59, 6m+4sm+2st+32t+X(sm)Y(t)). In terms of morphological features, the length of incisive foramen (LIF) and length of auditory bulla (LAB) of N. c. sacer is significantly larger than that of N. confucianus and N. bukit (P < 0.05) and the proportion of white tail tip to total tail length is significantly longer at N. c. sacer (≥ 1/3) than that at N. confucianus (≤ 1/3). Therefore, integrated analysis confirmed that N. c. sacer is a distinct species of genus Niviventer rather than a subspecies of N. confucianus or N. bukit, namely N. sacer, which is only distributed in Shandong.
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spelling doaj.art-6f85037c9b744e29a01acaf4de42d6832022-12-22T02:50:54ZengPensoft PublishersZooKeys1313-29702020-08-0195913715910.3897/zookeys.959.5342653426Niviventer confucianus sacer (Rodentia, Muridae) is a distinct species based on molecular, karyotyping, and morphological evidenceYaoyao Li0Yiqiao Li1Haotian Li2Jing Wang3Xiaoxiao Rong4Yuchun Li5Shandong UniversityShandong UniversityShandong UniversityShandong UniversityShandong UniversityShandong UniversityNiviventer confucianus sacer Thomas, 1908, which has been regarded as a subspecies of N. confucianus, was found to be a distinct species from N. confucianus based on molecular, karyotyping, and morphological characteristics in this study. Niviventer c. sacer was found to belong to a distinct phylogenetic clade in phylogenetic tree constructed using the mitochondrial gene Cytb, it clustered with N. bukit (Bonhote, 1903) from Vietnam and N. confucianus (Milne-Edwards, 1871) from Yunnan, but showed a distant relationship with N. confucianus from adjacent areas. The genetic distance between N. c. sacer and N. confucianus was more than 5.8%, reaching the level of interspecific differentiation. The species delimitation indicates that N. c. sacer is a monophyletic group. The karyotype of N. c. sacer (FN = 55, 8m+4st+32t+X(sm)Y(t)) differed from that of N. confucianus (FN = 59, 6m+4sm+2st+32t+X(sm)Y(t)). In terms of morphological features, the length of incisive foramen (LIF) and length of auditory bulla (LAB) of N. c. sacer is significantly larger than that of N. confucianus and N. bukit (P < 0.05) and the proportion of white tail tip to total tail length is significantly longer at N. c. sacer (≥ 1/3) than that at N. confucianus (≤ 1/3). Therefore, integrated analysis confirmed that N. c. sacer is a distinct species of genus Niviventer rather than a subspecies of N. confucianus or N. bukit, namely N. sacer, which is only distributed in Shandong.https://zookeys.pensoft.net/article/53426/download/pdf/
spellingShingle Yaoyao Li
Yiqiao Li
Haotian Li
Jing Wang
Xiaoxiao Rong
Yuchun Li
Niviventer confucianus sacer (Rodentia, Muridae) is a distinct species based on molecular, karyotyping, and morphological evidence
ZooKeys
title Niviventer confucianus sacer (Rodentia, Muridae) is a distinct species based on molecular, karyotyping, and morphological evidence
title_full Niviventer confucianus sacer (Rodentia, Muridae) is a distinct species based on molecular, karyotyping, and morphological evidence
title_fullStr Niviventer confucianus sacer (Rodentia, Muridae) is a distinct species based on molecular, karyotyping, and morphological evidence
title_full_unstemmed Niviventer confucianus sacer (Rodentia, Muridae) is a distinct species based on molecular, karyotyping, and morphological evidence
title_short Niviventer confucianus sacer (Rodentia, Muridae) is a distinct species based on molecular, karyotyping, and morphological evidence
title_sort niviventer confucianus sacer rodentia muridae is a distinct species based on molecular karyotyping and morphological evidence
url https://zookeys.pensoft.net/article/53426/download/pdf/
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