NDLI: The phylogeny and evolutionary history of the Lesion Simulating Disease (LSD) gene family in Viridiplantae

Content Provider	Springer Nature Link
Author	Cabreira, Caroline Cagliari, Alexandro Bücker Neto, Lauro Margis Pinheiro, Márcia Freitas, Loreta B. Bodanese Zanettini, Maria Helena
Copyright Year	2015
Abstract	The Lesion Simulating Disease (LSD) genes encode a family of zinc finger proteins that play a role in programmed cell death (PCD) and other biological processes, such as plant growth and photosynthesis. In the present study, we report the reconstruction of the evolutionary history of the LSD gene family in Viridiplantae. Phylogenetic analysis revealed that the monocot and eudicot genes were distributed along the phylogeny, indicating that the expansion of the family occurred prior to the diversification between these clades. Sequences encoding proteins that present one, two, or three LSD domains formed separate groups. The secondary structure of these different LSD proteins presented a similar composition, with the β-sheets being their main component. The evolution by gene duplication was identified only to the genes that contain three LSD domains, which generated proteins with equal structure. Moreover, genes encoding proteins with one or two LSD domains evolved as single-copy genes and did not result from loss or gain in LSD domains. These results were corroborated by synteny analysis among regions containing paralogous/orthologous genes in Glycine max and Populus trichocarpa. The Ka/Ks ratio between paralogous/orthologous genes revealed that a subfunctionalization process possibly could be occurring with the LSD genes, explaining the involvement of LSD members in different biological processes, in addition to the negative regulation of PCD. This study presents important novelty in the evolutionary history of the LSD family and provides a basis for future research on individual LSD genes and their involvement in important pathway networks in plants.
Starting Page	2107
Ending Page	2119
Page Count	13
File Format	PDF
ISSN	16174615
Journal	Molecular and General Genetics MGG
Volume Number	290
Issue Number	6
e-ISSN	16174623
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-05-17
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Lesion Simulating Disease (LSD) Zinc finger LSD domain LSD family phylogeny Gene duplication Synteny Protein secondary structure Cell Biology Biochemistry Microbial Genetics and Genomics Plant Genetics & Genomics Animal Genetics and Genomics
Content Type	Text
Resource Type	Article
Subject	Genetics Medicine Molecular Biology

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