李海龙, 何建, 赵延梅, 杨汉青, 马英. 基于COI基因的柴达盆地常见寄生蚤种的DNA条形码分析[J]. 中国人兽共患病学报, 2018,34(12): 1107-1111
LI Hai-Long, HE Jian, ZHAO Yan-Mei, YANG Han-Qing, MA Ying. DNA barcoding based on mt DNA COI gene sequence of fleas from Qiadam Basin in Qinghai, China[J]. Chinese Journal of Zoonoses, 2018,34(12): 1107-1111.
Fund:Funded by the Natural Science Foundation of China (No. 81560521), the Basic Research Project of Qinghai Province (No. 2016-ZJ-770), and the Qinghai Province Key Laboratory of Plague Prevention and Research (No. 2017-ZJ-Y22)
Abstract
In order to making up the deficiency of the traditional morphological classification method, we were being to identify fleas of the molecular biology by DNA barcoding in the study. The partial fragments (about 600 bp) of the mt DNA COI gene were amplified from 68 samples of fleas by PCR, and the obtained COI gene fragments were sequenced and aligned. The intra-and inter-species genetic distances were calculated among the closely-related species with neighbor-joining (NJ) method. We got 68 COI gene sequences and calculated the genetic distance about 19 kinds of fleas that the intraspecific distance 0.01%-2.9%, interspecific distance 3%-15.4%, interspecific genetic distance was significantly greater than the intraspecific genetic distance. NJ tree showed the same species have formed a single line with high support rates and interspecific branch was clearly. The result showed COI gene appear to be accurate and efficient markers for fleas identification.
Key words:
COI gene; flea; DNA barcoding; molecular marker; species identification; Qiadam Basin
DunnetGM, MardonDK. Siphonaptera[M]. Lawrence JF, Nielsen ES, Spradberry JP, et al. . Melbourne: Melbourne University Press, 1991: 125-140. [本文引用:1]
[3]
HebertPDN, PentonEH, BumsJM, et al. Ten species in one: DNA barcoding reveals cryptic species in the neotropical skipper butterfly Astraptes fulgerator[J]. , 2004, 101(41): 14812-14817. DOI: 10.1073/pnas.0406166101[本文引用:1]
[4]
HebertPDN, RatuasinghamS, WaardJR. Barcoding animal life: cytochrome c oxidase subunit I divergences among closely related species[J]. , 2003, 270: S96-S99. DOI: 10.1098/rsbl.2003.0025[本文引用:1]
[5]
HebertPDN, StoeckleMY, ZemlakTS, et al. Identification of bird s through DNA barcodes[J]. , 2004b, 2: 1657-1663. DOI: 10.1371/journal.pbio.00203212[本文引用:1]
[6]
WardRD, ZemlakTS, InnesBH, et al. DNA barcoding Australia’s fish species[J]. , 2005, 360, 1847-1857. DOI: 10.1098/rstb.2005.1716[本文引用:1]
[7]
RatnasinghamS, HebertPDN. BOLD: the barcode of life data system[J]. , 2007, 7, 355-364, DOI: 10.1111/j.1471-8286.2007.01678.x[本文引用:1]
[8]
SimmonsNB. Order Chiroptera [M]. Wilson DE, Reeder DM. . Baltimore: Johns Hopkins University Press, 2005: 315-525. [本文引用:1]
[9]
ThompsonJD, GibsonTJ, PlewniakF, et al. The Clustal X windows interface: flexible strategies for multiple sequences alignment aided by quality analysis tools[J]. , 1997, 24: 4876-4882. DOI: 10.1093/nar/25.24.4876[本文引用:1]
[10]
TmauraK, StecherG, PetersonD, et al. Mega 6: molecular evolutionary genetics analysis (version 6. 0)[J]. , 2013, 30: 2725-2729. DOI: 10.1093/molbev/mst197[本文引用:1]
[11]
KimuraM. A simple method for estimating evolutionary rates of base substitutions through comparative studies of nucleotide sequences[J]. , 1980, 16, 111-120. DOI: 10.1007/BF01731581[本文引用:1]