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Citation for Study 23684

Citation title: "Classification and evolution of Morus based on phylogenetic analyses of ITS and cpDNA sequences".

Study name: "Classification and evolution of Morus based on phylogenetic analyses of ITS and cpDNA sequences".

This study is part of submission 23684 (Status: Published).

Citation

Xuan Y., Wu Y., Li P., Liu R., Luo Y., Yuan J., Xiang Z., & He N. 2018. Classification and evolution of Morus based on phylogenetic analyses of ITS and cpDNA sequences. BMC Evolutionary Biology, .

Authors

• Xuan Y. (submitter)
• Wu Y.
• Li P.
• Liu R.
• Luo Y.
• Yuan J.
• Xiang Z.
• He N.

Abstract

Background: The genus Morus (Moraceae) is widely distributed in the world. The classification of Morus is still undetermined, with the characteristics of low resolution in molecular classification and incongruence between molecular and morphological classification. Internal transcribed spacer (ITS) regions (ITS1, 5.8S, and ITS2) are among the most widely used molecular markers in phylogenetic analyses of angiosperms. As one symbol of incomplete concerted evolution of ITS sequences, ITS pseudogenes can act as good supplement in the phylogenetic analyses of ITS sequences. Results: Deep sequencing of ITS sequences in 33 mulberry materials were conducted here. We found ITS pseudogenes in 11 mulberry resources. In the phylogenetic tree constructed from ITS sequences, clade B was separated into short-type sequence clades (clade 1 and clade 2), a long-type sequence clade (clade 3), pseudogroup 1, and pseudogroup 2. cpDNA phylogenetic tree also separated clade B into two clades Conclusions: Two molecular species were separated in clade B. The existence of three connection patterns and incongruent distribution patterns between the cpDNA and ITS sequence phylogenetic tree suggested that the ITS pseudogene sequences connect with genetic information from the female progenitor. Hybridization has played important roles in the evolution of mulberry, and has resulted in low resolution in the classification of ITS sequences. An evolutionary pattern illustrating the evolution history of mulberry is proposed. These findings have significance for the conservation of local mulberry resources.

Keywords

Morus; Internal transcribed spacer; pseudogenes; concerted evolution; phylogenetic analysis

External links

About this resource

• Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S23684
• Other versions: Nexus NeXML
• Show BibTeX reference

  		@ARTICLE{TreeBASE2Ref29094,
  	 author = {Yahui  Xuan and Yue  Wu and Peng  Li and Ruiling  Liu and Yiwei  Luo and Jianglian  Yuan and Zhonghuai  Xiang and Ningjia  He},
  	 title = {Classification and evolution of Morus based on phylogenetic analyses of ITS and cpDNA sequences},
  	 year = {2018},
  	 keywords = {Morus; Internal transcribed spacer; pseudogenes; concerted evolution; phylogenetic analysis},
  	 doi = {},
  	 url = {http://},
  	 pmid = {},
  	 journal = {BMC Evolutionary Biology},
  	 volume = {},
  	 number = {},
  	 pages = {},
  	 abstract = {Background: The genus Morus (Moraceae) is widely distributed in the world. The classification of Morus is still undetermined, with the characteristics of low resolution in molecular classification and incongruence between molecular and morphological classification. Internal transcribed spacer (ITS) regions (ITS1, 5.8S, and ITS2) are among the most widely used molecular markers in phylogenetic analyses of angiosperms. As one symbol of incomplete concerted evolution of ITS sequences, ITS pseudogenes can act as good supplement in the phylogenetic analyses of ITS sequences.
  Results: Deep sequencing of ITS sequences in 33 mulberry materials were conducted here. We found ITS pseudogenes in 11 mulberry resources. In the phylogenetic tree constructed from ITS sequences, clade B was separated into short-type sequence clades (clade 1 and clade 2), a long-type sequence clade (clade 3), pseudogroup 1, and pseudogroup 2. cpDNA phylogenetic tree also separated clade B into two clades 
  Conclusions: Two molecular species were separated in clade B. The existence of three connection patterns and incongruent distribution patterns between the cpDNA and ITS sequence phylogenetic tree suggested that the ITS pseudogene sequences connect with genetic information from the female progenitor. Hybridization has played important roles in the evolution of mulberry, and has resulted in low resolution in the classification of ITS sequences. An evolutionary pattern illustrating the evolution history of mulberry is proposed. These findings have significance for the conservation of local mulberry resources.}
  }
  		

• Show RIS reference

  		TY  - JOUR
  ID  - 29094
  AU  - Xuan,Yahui 
  AU  - Wu,Yue 
  AU  - Li,Peng 
  AU  - Liu,Ruiling 
  AU  - Luo,Yiwei 
  AU  - Yuan,Jianglian 
  AU  - Xiang,Zhonghuai 
  AU  - He,Ningjia 
  T1  - Classification and evolution of Morus based on phylogenetic analyses of ITS and cpDNA sequences
  PY  - 2018
  KW  - Morus; Internal transcribed spacer; pseudogenes; concerted evolution; phylogenetic analysis
  UR  - http://dx.doi.org/
  N2  - Background: The genus Morus (Moraceae) is widely distributed in the world. The classification of Morus is still undetermined, with the characteristics of low resolution in molecular classification and incongruence between molecular and morphological classification. Internal transcribed spacer (ITS) regions (ITS1, 5.8S, and ITS2) are among the most widely used molecular markers in phylogenetic analyses of angiosperms. As one symbol of incomplete concerted evolution of ITS sequences, ITS pseudogenes can act as good supplement in the phylogenetic analyses of ITS sequences.
  Results: Deep sequencing of ITS sequences in 33 mulberry materials were conducted here. We found ITS pseudogenes in 11 mulberry resources. In the phylogenetic tree constructed from ITS sequences, clade B was separated into short-type sequence clades (clade 1 and clade 2), a long-type sequence clade (clade 3), pseudogroup 1, and pseudogroup 2. cpDNA phylogenetic tree also separated clade B into two clades 
  Conclusions: Two molecular species were separated in clade B. The existence of three connection patterns and incongruent distribution patterns between the cpDNA and ITS sequence phylogenetic tree suggested that the ITS pseudogene sequences connect with genetic information from the female progenitor. Hybridization has played important roles in the evolution of mulberry, and has resulted in low resolution in the classification of ITS sequences. An evolutionary pattern illustrating the evolution history of mulberry is proposed. These findings have significance for the conservation of local mulberry resources.
  L3  - 
  JF  - BMC Evolutionary Biology
  VL  - 
  IS  - 
  ER  -