scholarly journals Genome-Wide Analysis of the Lateral Organ Boundaries Domain (LBD) Gene Family in Solanum tuberosum

2019 ◽  
Vol 20 (21) ◽  
pp. 5360 ◽  
Author(s):  
Hengzhi Liu ◽  
Minxuan Cao ◽  
Xiaoli Chen ◽  
Minghui Ye ◽  
Peng Zhao ◽  
...  
Keyword(s):  
Drought Stress ◽  
Plant Growth And Development ◽  
Point Distribution ◽  
Expression Levels ◽  
Genome Wide Analysis ◽  
Qrt Pcr ◽  
Genome Wide ◽  
Normal Metabolism ◽  
Lateral Organ ◽  
Organ Boundaries

Lateral organ boundaries domain (LBD) proteins belong to a particular class of transcription factors of lateral organ boundary (LOB) specific domains that play essential roles in plant growth and development. However, a potato phylogenetic analysis of the LBD family has not been fully studied by scholars and researchers. In this research, bioinformatics methods and the growth of potatoes were used to identify 43 StLBD proteins. We separated them into seven subfamilies: Ia, Ib, Ic, Id, Ie, IIa and IIb. The number of amino acids encoded by the potato LBD family ranged from 94 to 327. The theoretical isoelectric point distribution ranged from 4.16 to 9.12 Kda, and they were distributed among 10 chromosomes. The results of qRT-PCR showed that the expression levels of StLBD2-6 and StLBD3-5 were up-regulated under drought stress in the stem. The expression levels of StLBD1-5 and StLBD2-6 were down-regulated in leaves. We hypothesized that StLBD1-5 was down-regulated under drought stress, and that StLBD2-6 and StLBD3-5 up-regulation might help to maintain the normal metabolism of potato and enhance the potatoes’ resistance to drought.

scholarly journals Genome-Wide Analysis of Alternative Splicing during Development and Drought Stress in Maize

2015 ◽  
Vol 170 (1) ◽  
pp. 586-599 ◽  
Author(s):  
Shawn R. Thatcher ◽  
Olga N. Danilevskaya ◽  
Xin Meng ◽  
Mary Beatty ◽  
Gina Zastrow-Hayes ◽  
...  
Keyword(s):  
Alternative Splicing ◽  
Drought Stress ◽  
Genome Wide Analysis ◽  
Genome Wide

scholarly journals Genome-wide identification and characterization of the Lateral Organ Boundaries Domain (LBD) gene family in polyploid wheat and related species

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e11811
Author(s):  
Jun Xu ◽  
Ping Hu ◽  
Ye Tao ◽  
Puwen Song ◽  
Huanting Gao ◽  
...  
Keyword(s):  
Gene Family ◽  
Phylogenetic Relationship ◽  
Gene Structure ◽  
Related Species ◽  
Polyploid Wheat ◽  
Relationship Analysis ◽  
Triticeae Species ◽  
Genome Wide ◽  
Lateral Organ ◽  
Organ Boundaries

Background Wheat (Triticum aestivum) originated from three different diploid ancestral grass species and experienced two rounds of polyploidization. Exploring how certain wheat gene subfamilies have expanded during the evolutionary process is of great importance. The Lateral Organ Boundaries Domain (LBD) gene family encodes plant-specific transcription factors that share a highly conserved LOB domain and are prime candidates for this, as they are involved in plant growth, development, secondary metabolism and stress in various species. Methods Using a genome-wide analysis of high-quality polyploid wheat and related species genome sequences, a total of 228 LBD members from five Triticeae species were identified, and phylogenetic relationship analysis of LBD members classified them into two main classes (classes I and II) and seven subgroups (classes I a–e, II a and II b). Results The gene structure and motif composition analyses revealed that genes that had a closer phylogenetic relationship in the same subgroup also had a similar gene structure. Macrocollinearity and microcollinearity analyses of Triticeae species suggested that some LBD genes from wheat produced gene pairs across subgenomes of chromosomes 4A and 5A and that the complex evolutionary history of TaLBD4B-9 homologs was a combined result of chromosome translocation, polyploidization, gene loss and duplication events. Public RNA-seq data were used to analyze the expression patterns of wheat LBD genes in various tissues, different developmental stages and following abiotic and biotic stresses. Furthermore, qRT-PCR results suggested that some TaLBDs in class II responded to powdery mildew, regulated reproductive growth and were involved in embryo sac development in common wheat.

scholarly journals Genome-wide analysis of the transcriptional response to drought stress in root and leaf of common bean

2020 ◽  
Vol 43 (1) ◽  
Author(s):  
Wendell Jacinto Pereira ◽  
Arthur Tavares de Oliveira Melo ◽  
Alexandre Siqueira Guedes Coelho ◽  
Fabiana Aparecida Rodrigues ◽  
Sujan Mamidi ◽  
...  
Keyword(s):  
Drought Stress ◽  
Common Bean ◽  
Transcriptional Response ◽  
Genome Wide Analysis ◽  
Genome Wide
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