Comparative mitogenomes and phylogenetic analysis reveal taxonomic relationship of genera Teredorus and Systolederus (Orthoptera, Tetrigoidea)

Zootaxa ◽  
2021 ◽  
Vol 5027 (1) ◽  
pp. 127-135
Author(s):  
XUEJUAN LI ◽  
YUXIN LIU ◽  
LILIANG LIN

The genera Teredorus and Systolederus belong to Tetriginae and Metrodorinae respectively. However, species within these two genera have strikingly similar features, made it difficult to identify clearly by morphological characteristics. In this study, we sequenced the mitochondrial genomes (mitogenomes) of two Teredorus species, and compared them with Systolederus mitochondrial sequences. The sequenced mitogenomes of T. hainanensis and T. bashanensis are 14,946 bp and 14,775 bp in size, respectively. The A+T content of mitogenomes is 76.2% (T. hainanensis) and 74.0% (T. bashanensis). Comparative analysis showed that mitochondrial sequences and structure were similar within these two genera. The results of K2P distances and phylogenetic analysis revealed that Systolederus and Teredorus might be likely considered as one genus of Teredorus. It will provide important resources for further understanding of the taxonomy and phylogenetic relationship of Systolederus and Teredorus.  

1984 ◽  
Vol 116 (5) ◽  
pp. 691-701 ◽  
Author(s):  
Thomas W. Simmons ◽  
Ian M. Smith

AbstractAdults and deutonymphs of Najadicola ingens (Koenike) are redescribed and larvae are described for the first time. In light of larval, deutonymphal and adult character states, the phylogenetic relationship of Najadicola with genera in the families Pionidae and Unionicolidae is re-evaluated and transfer of the subfamily Najadicolinae to Pionidae is proposed. Original life history information is presented to supplement existing literature. Parasitism by larval N. ingens on an adult chironomid of the genus Polypedilum is reported. The unique behavioural and morphological characteristics of members of Najadicola suggest that mussel parasitism evolved independently from a parallel adaptive sequence in the genus Unionicola.


2020 ◽  
Author(s):  
Hukam C. Rawal ◽  
Abhishek Mazumder ◽  
Sangeeta Borchetia ◽  
Biswajit Bera ◽  
S. Soundararajan ◽  
...  

AbstractTea is an important plantation crop of some Asian and African countries. Based upon the morphological characteristics, tea is classified botanically into 2 main types i.e. Assam and China, which are morphologically very distinct. Further, they are so easily pollinated among themselves, that a third category, Cambod type is also described. Although the general consensus of origin of tea is India, Burma and China joining area, yet specific origin of China and Assam tea are not yet clear. In the present study, we made an attempt to understand the origin of Indian tea through the comparative analysis of different chloroplast (cp) genomes under the Camellia genus. Cp genome based phylogenetic analysis indicated that Indian Assam Tea, TV-1 formed a different group from that of China tea, indicating that TV-1 might have undergone different domestication and hence owe different origin. The simple sequence repeats (SSRs) analysis and codon usage distribution pattern also supported the clustering order in the cp genome based phylogenetic tree.


Nova Hedwigia ◽  
2020 ◽  
Vol 110 (1) ◽  
pp. 37-77
Author(s):  
Shulian Xie ◽  
Mingyu Qiu ◽  
Fangru Nan ◽  
Kunpeng Fang ◽  
Jinfen Han

A catalogue and bibliography of Batrachospermales (Rhodophyta) in China is presented. There are 33 species belonged to 10 genera and 2 families. Species distribution among the 10 gen- era are as follows: Batrachospermum, 6; Kumanoa, 10; Montagnia, 1; Nothocladus, 1; Sheathia, 3; Sirodotia, 4; Torularia, 1; Virescentia, 1; Lemanea, 4; and Paralemanea, 2. According to geo- graphical distribution, the members of Batrachospermales in China are composed of 3 types: cos- mopolitan (distributed on at least 5 continents or 10 countries of the world), 6 taxa; regionally dis- tributed (distributed in no more than 4 continents or 10 countries), 15 taxa; and endemic to China (collected, described and reported only from China), 12 taxa. Most species were distributed in East and Southwest China, up to or more than 20 species. Eight species were recorded in North and Central China, respectively. Only 1 or 2 species were found in Northeast and South China, respec- tively. However, no one has been found in the northwest China so far. Thirteen species of Batra- chospermales in China have been confirmed by morphological characteristics combining with mo- lecular data. But unfortunately, the other species are unable to obtain molecular data because fresh collections are not available, which need to be confirmed or rejected in future studies. Kylin, H. (1912): Studien über die schwedischen Arten der Gattung Batrachospermum Roth und Sirodotia nov. gen. – Nova Acta Reg. Soc. Sci. Upsal., Series 4, 3 (3): 1–40. Li, L. C. (1939): Freshwater algae of Yunnan expedition 1935–1937. – Bull. Fan Mem. Inst. Biol., Bot. Series 9: 31–57. Li, L. C. (1940): Additions to the freshwater algae of Yunnan. – Bull. Fan Mem. Inst. Biol., Bot. Series 10: 47–67. Li, Q. & Xie, S. L. (2009): Studies on intraspecific variation of Batrachospermum gelatinosum (Rhodophyta). – J. Shanx. Univ. (Nat. Sci. Ed.) 32 (S1): 113–115. Li, Q., Ji, L. & Xie, S. L. (2010): Phylogenetic analysis of Batrachospemales (Florideophyceae, Rhodophyta) based on chloroplast rbc L sequences. – Acta Hydrobiol. Sin. 34 (1): 20–28. Liao, L. M. (2010): Nomenclatural notes on some Philippine species of freshwater red algae (Rhodophyta). – Phil. J. Syst. Biol. 4: 89–94. Linnaeus, C. (1753): Species Plantarum, Vol. 2. Impensis Laurentii Salvii, Holmiae. Luo, A. G., Hu, B. F. & Xie, S. L. (2009): A preliminary study on the alage in Jinci Park, Shanxi Province. – J. Jinzh. Univ. 26 (3): 51–54, 85. Lyons, T. W., Reinhard, C. T. & Planavsky, N. J. (2014): The rise of oxygen in Earth's early ocean and atmosphere. – Nature 506 (7488): 307–315. McNeey, J. A. (1994): Protected areas for the 21st century: working to provide benefits to society. – Biodivers. Conserv. 3 (5): 390–405. Montagne, C. (1850): Cryptogamia Guyanensis, seu plantarum cellularium in Guyana gallica annis 1835–1849 a Cl. Leprieur collectarum enumeratio universalis. – Ann. Sci. Nat., Bot., Trois. Série 14: 83–309. Nan, F. R., Feng, J. & Xie, S. L. (2014a): Phylogenetic relationship of genus Kumanoa (Batrachospermales, Rhodophyta) based on chloroplast UPA genes. – Bull. Bot. Res. 34 (5): 584–591. Nan, F. R., Feng, J. & Xie, S. L. (2014b): Advances on systematics of Kumanoa (Batrachospermales, Rhodophyta). – World Sci.-Tech. Res. Devel. 36 (3): 33–39. Nan, F. R., Feng, J. & Xie, S. L. (2015): Phylogenetic analysis of genus Kumanoa based on chloroplast psa A and psb A genes. – Acta Hydrobiol. Sin. 39 (1): 155–163.


Hydrobiologia ◽  
2008 ◽  
Vol 614 (1) ◽  
pp. 353-362 ◽  
Author(s):  
Xiaojie Pan ◽  
Fengyi Chang ◽  
Lijuan Kang ◽  
Genbao Li ◽  
Dunhai Li ◽  
...  

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