scholarly journals Arabidopsis paralogous genes RPL23aA and RPL23aB encode functionally equivalent proteins

2020 ◽  
Author(s):  
Wei Xiong ◽  
Xiangze Chen ◽  
Chengxin Zhu ◽  
Jiancong Zhang ◽  
Ting Lan ◽  
...  
Keyword(s):  
Ribosomal Protein ◽  
Developmental Stages ◽  
Functional Divergence ◽  
Knock Out ◽  
Paralogous Genes ◽  
Gus Reporter ◽  
The Family ◽  
Dna Insertion ◽  
Adequate Dosage ◽  
Insertion Mutants

Abstract Background: In plants, each ribosomal protein (RP) is encoded by a small gene family but it is largely unknown whether the family members are functionally diversified. There are two RPL23a paralogues genes ( RPL23aA and RPL23aB ) found in Arabidopsis thaliana. Knock-down of RPL23aA using RNAi impeded growth and led to morphological abnormalities, whereas knock-out of RPL23aB had no observable phenotype, thus these two RPL23a paralogous proteins have been used as examples of ribosomal protein paralogues with functional divergence in many published papers. Results: In this study, we characterized T-DNA insertion mutants of RPL23aA and RPL23aB . A rare non-allelic non-complementation phenomenon was found in the F1 progeny of the rpl23aa X rpl23ab cross, which revealed a dosage effect of these two genes. Both of RPL23aA and RPL23aB were found to be expressed almost in all examined tissues as revealed by GUS reporter analysis. Expression of RPL23aB driven by the RPL23aA promoter can rescue the phenotype of rpl23aa , indicating these two proteins are actually equivalent in function. Interestingly, based on the publicly available RNA-seq data, we found that these two RPL23a paralogues were expressed in a concerted manner and the expression level of RPL23aA was much higher than that of RPL23aB at different developmental stages and in different tissues. Conclusions: Our findings suggest that RPL23aA and RPL23aB proteins actually have equal function and presence of paralogous genes for the RPL23a protein in plants might be necessary to maintain its adequate dosage.

scholarly journals Arabidopsis ribosomal proteins RPL23aA and RPL23aB are functionally equivalent

2020 ◽  
Author(s):  
Wei Xiong ◽  
Xiangze Chen ◽  
Chengxin Zhu ◽  
Jiancong Zhang ◽  
Ting Lan ◽  
...  
Keyword(s):  
Ribosomal Protein ◽  
Ribosomal Proteins ◽  
Developmental Stages ◽  
Functional Divergence ◽  
Knock Out ◽  
Gus Reporter ◽  
The Family ◽  
Dna Insertion ◽  
Adequate Dosage ◽  
Insertion Mutants

Abstract Background: In plants, each ribosomal protein (RP) is encoded by a small gene family but it is largely unknown whether the family members are functionally diversified. There are two RPL23a paralogues genes (RPL23aA and RPL23aB ) found in Arabidopsis thaliana. Knock-down of RPL23aA using RNAi impeded growth and led to morphological abnormalities, whereas knock-out of RPL23aB had no observable phenotype, thus these two RPL23a paralogous proteins have been used as examples of ribosomal protein paralogues with functional divergence in many published papers. Results: In this study, we characterized T-DNA insertion mutants of RPL23aA and RPL23aB. A rare non-allelic non-complementation phenomenon was found in the F1 progeny of the rpl23aa X rpl23ab cross, which revealed a dosage effect of these two genes. Both of RPL23aA and RPL23aB were found to be expressed almost in all examined tissues as revealed by GUS reporter analysis. Expression of RPL23aB driven by the RPL23aA promoter can rescue the phenotype of rpl23aa, indicating these two proteins are actually equivalent in function. Interestingly, based on the publicly available RNA-seq data, we found that these two RPL23a paralogues were expressed in a concerted manner and the expression level of RPL23aA was much higher than that of RPL23aB at different developmental stages and in different tissues. Conclusions: Our findings suggest that RPL23aA and RPL23aB proteins actually have equal function and presence of paralogous genes for the RPL23a protein in plants might be necessary to maintain its adequate dosage.

scholarly journals Arabidopsis paralogous genes RPL23aA and RPL23aB encode functionally equivalent proteins

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Wei Xiong ◽  
Xiangze Chen ◽  
Chengxin Zhu ◽  
Jiancong Zhang ◽  
Ting Lan ◽  
...  
Keyword(s):  
Ribosomal Protein ◽  
Ribosomal Proteins ◽  
Developmental Stages ◽  
Functional Divergence ◽  
Knock Out ◽  
Paralogous Genes ◽  
Gus Reporter ◽  
Dna Insertion ◽  
Adequate Dosage ◽  
Paralogous Proteins

Abstract Background In plants, each ribosomal protein (RP) is encoded by a small gene family but it is largely unknown whether the family members are functionally diversified. There are two RPL23a paralogous genes (RPL23aA and RPL23aB) encoding cytoplasmic ribosomal proteins in Arabidopsis thaliana. Knock-down of RPL23aA using RNAi impeded growth and led to morphological abnormalities, whereas knock-out of RPL23aB had no observable phenotype, thus these two RPL23a paralogous proteins have been used as examples of ribosomal protein paralogues with functional divergence in many published papers. Results In this study, we characterized T-DNA insertion mutants of RPL23aA and RPL23aB. A rare non-allelic non-complementation phenomenon was found in the F1 progeny of the rpl23aa X rpl23ab cross, which revealed a dosage effect of these two genes. Both RPL23aA and RPL23aB were found to be expressed almost in all examined tissues as revealed by GUS reporter analysis. Expression of RPL23aB driven by the RPL23aA promoter can rescue the phenotype of rpl23aa, indicating these two proteins are actually equivalent in function. Interestingly, based on the publicly available RNA-seq data, we found that these two RPL23a paralogues were expressed in a concerted manner and the expression level of RPL23aA was much higher than that of RPL23aB at different developmental stages and in different tissues. Conclusions Our findings suggest that the two RPL23a paralogous proteins are functionally equivalent but the two genes are not. RPL23aA plays a predominant role due to its higher expression levels. RPL23aB plays a lesser role due to its lower expression. The presence of paralogous genes for the RPL23a protein in plants might be necessary to maintain its adequate dosage.

scholarly journals Arabidopsis paralogous genes RPL23aA and RPL23aB encode functionally equivalent proteins

2020 ◽  
Author(s):  
Wei Xiong ◽  
Xiangze Chen ◽  
Chengxin Zhu ◽  
Jiancong Zhang ◽  
Ting Lan ◽  
...  
Keyword(s):  
Ribosomal Protein ◽  
Ribosomal Proteins ◽  
Developmental Stages ◽  
Functional Divergence ◽  
Knock Out ◽  
Paralogous Genes ◽  
Gus Reporter ◽  
Dna Insertion ◽  
Adequate Dosage ◽  
Paralogous Proteins

Abstract Background: In plants, each ribosomal protein (RP) is encoded by a small gene family but it is largely unknown whether the family members are functionally diversified. There are two RPL23a paralogous genes (RPL23aA and RPL23aB ) encoding cytoplasmic ribosomal proteins in Arabidopsis thaliana. Knock-down of RPL23aA using RNAi impeded growth and led to morphological abnormalities, whereas knock-out of RPL23aB had no observable phenotype, thus these two RPL23a paralogous proteins have been used as examples of ribosomal protein paralogues with functional divergence in many published papers. Results: In this study, we characterized T-DNA insertion mutants of RPL23aA and RPL23aB. A rare non-allelic non-complementation phenomenon was found in the F1 progeny of the rpl23aa X rpl23ab cross, which revealed a dosage effect of these two genes. Both RPL23aA and RPL23aB were found to be expressed almost in all examined tissues as revealed by GUS reporter analysis. Expression of RPL23aB driven by the RPL23aA promoter can rescue the phenotype of rpl23aa, indicating these two proteins are actually equivalent in function. Interestingly, based on the publicly available RNA-seq data, we found that these two RPL23a paralogues were expressed in a concerted manner and the expression level of RPL23aA was much higher than that of RPL23aB at different developmental stages and in different tissues. Conclusions: Our findings suggest that the two RPL23a paralogous proteins are functionally equivalent but the two genes are not. RPL23aA plays a predominant role due to its higher expression levels. RPL23aB plays a lesser role due to its lower expression. The presence of paralogous genes for the RPL23a protein in plants might be necessary to maintain its adequate dosage.

scholarly journals Arabidopsis paralogous genes RPL23aA and RPL23aB encode functionally equivalent proteins

2020 ◽  
Author(s):  
Wei Xiong ◽  
Xiangze Chen ◽  
Chengxin Zhu ◽  
Jiancong Zhang ◽  
Ting Lan ◽  
...  
Keyword(s):  
Ribosomal Protein ◽  
Ribosomal Proteins ◽  
Developmental Stages ◽  
Functional Divergence ◽  
Knock Out ◽  
Paralogous Genes ◽  
Gus Reporter ◽  
Dna Insertion ◽  
Adequate Dosage ◽  
Paralogous Proteins

Abstract Background: In plants, each ribosomal protein (RP) is encoded by a small gene family but it is largely unknown whether the family members are functionally diversified. There are two RPL23a paralogous genes (RPL23aA and RPL23aB ) encoding cytoplasmic ribosomal proteins in Arabidopsis thaliana. Knock-down of RPL23aA using RNAi impeded growth and led to morphological abnormalities, whereas knock-out of RPL23aB had no observable phenotype, thus these two RPL23a paralogous proteins have been used as examples of ribosomal protein paralogues with functional divergence in many published papers. Results: In this study, we characterized T-DNA insertion mutants of RPL23aA and RPL23aB. A rare non-allelic non-complementation phenomenon was found in the F1 progeny of the rpl23aa X rpl23ab cross, which revealed a dosage effect of these two genes. Both RPL23aA and RPL23aB were found to be expressed almost in all examined tissues as revealed by GUS reporter analysis. Expression of RPL23aB driven by the RPL23aA promoter can rescue the phenotype of rpl23aa, indicating these two proteins are actually equivalent in function. Interestingly, based on the publicly available RNA-seq data, we found that these two RPL23a paralogues were expressed in a concerted manner and the expression level of RPL23aA was much higher than that of RPL23aB at different developmental stages and in different tissues. Conclusions: Our findings suggest that the two RPL23a paralogous proteins are functionally equivalent but the two genes are not. RPL23aA plays a predominant role due to its higher expression levels. RPL23aB plays a lesser role due to its lower expression. The presence of paralogous genes for the RPL23a protein in plants might be necessary to maintain its adequate dosage.

scholarly journals Transcriptional Profiles of Secondary Metabolite Biosynthesis Genes and Cytochromes in the Leaves of Four Papaver Species

Data ◽  
2018 ◽  
Vol 3 (4) ◽  
pp. 55 ◽  
Author(s):  
Dowan Kim ◽  
Myunghee Jung ◽  
In Ha ◽  
Min Lee ◽  
Seok-Geun Lee ◽  
...  
Keyword(s):  
Secondary Metabolite ◽  
Developmental Stages ◽  
Expression Profiles ◽  
Bioinformatics Analyses ◽  
Kegg Pathways ◽  
Benzylisoquinoline Alkaloid ◽  
Development Life Cycle ◽  
The Family ◽  
Leaf Transcriptome ◽  
Secondary Metabolite Biosynthesis

Poppies are well-known plants in the family Papaveraceae that are rich in alkaloids. This family contains 61 species, and in this study we sequenced the transcriptomes of four species’ (Papaver rhoeas, Papaver nudicaule, Papaver fauriei, and Papaver somniferum) leaves. These transcripts were systematically assessed for the expression of secondary metabolite biosynthesis (SMB) genes and cytochromes, and their expression profiles were assessed for use in bioinformatics analyses. This study contributed 265 Gb (13 libraries with three biological replicates) of leaf transcriptome data from three Papaver plant developmental stages. Sequenced transcripts were assembled into 815 Mb of contigs, including 226 Mb of full-length transcripts. The transcripts for 53 KEGG pathways, 55 cytochrome superfamilies, and benzylisoquinoline alkaloid biosynthesis (BIA) were identified and compared to four other alkaloid-rich genomes. Additionally, 22 different alkaloids and their relative expression profiles in three developmental stages of Papaver species were assessed by targeted metabolomics using LC-QTOF-MS/MS. Collectively, the results are given in co-occurrence heat-maps to help researchers obtain an overview of the transcripts and their differential expression in the Papaver development life cycle, particularly in leaves. Moreover, this dataset will be a valuable resource to derive hypotheses to mitigate an array of Papaver developmental and secondary metabolite biosynthesis issues in the future.

An intergenic G-rich region in Leishmania tarentolae kinetoplast maxicircle DNA is a pan-edited cryptogene encoding ribosomal protein S12

1992 ◽  
Vol 12 (1) ◽  
pp. 56-67
Author(s):  
D A Maslov ◽  
N R Sturm ◽  
B M Niner ◽  
E S Gruszynski ◽  
M Peris ◽  
...  
Keyword(s):  
Amino Acid ◽  
Ribosomal Protein ◽  
Ribosomal Proteins ◽  
Sequence Similarity ◽  
Rich Region ◽  
Leishmania Tarentolae ◽  
Significant Sequence Similarity ◽  
The Family ◽  
Intergenic Regions ◽  
Ribosomal Protein S12

Six short G-rich intergenic regions in the maxicircle of Leishmania tarentolae are conserved in location and polarity in two other kinetoplastid species. We show here that G-rich region 6 (G6) represents a pan-edited cryptogene which contains at least two domains edited independently in a 3'-to-5' manner connected by short unedited regions. In the completely edited RNA, 117 uridines are added at 49 sites and 32 uridines are deleted at 13 sites, creating a translated 85-amino-acid polypeptide. Similar polypeptides are probably encoded by pan-edited G6 transcripts in two other species. The G6 polypeptide has significant sequence similarity to the family of S12 ribosomal proteins. A minicircle-encoded gRNA overlaps 12 editing sites in G6 mRNA, and chimeric gRNA/mRNA molecules were shown to exist, in agreement with the transesterification model for editing.

Biological control methods in Piper nigrum Linn. leaves infected with galls caused by Liothrips karneyi

2021 ◽  
Vol 12 (1) ◽  
pp. 696-698
Author(s):  
Asha Renjith ◽  
Payal Lodha
Keyword(s):  
Biological Control ◽  
Disease Management ◽  
Crop Production ◽  
Developmental Stages ◽  
Black Pepper ◽  
Piper Nigrum ◽  
Pharmacological Activities ◽  
The Family ◽  
Growth Reaction ◽  
Complex Phenomena

Piper nigrum Linn. (Black pepper)  belongs to the family Piperaceae and an economically and medicinally important spice and is a native of Southern India. Leaf marginal gall is transmitted by Liothrips karnyi belonging to family Phlaeothripidae of order Thysanoptera (Thrips). Insect induced galls arise due to growth reaction of plants due to the attack of cecidozoa, also known as zoocecidia. The growth and development of the host plant alter due to the infestation of the insect, which involves certain complex phenomena. The different groups of cecidozoa influence the plants in such a way as to produce galls at different stages in their life history. Most of the cecidozoa cause galls only in their developmental stages, but some of them are capable of inducing galls both in larval as well as adult stages. The crop production in India has been adversely affected due to the infestation of pests. And it is necessary to use different approaches of disease management to curb the infestation, and significant researchers have shown progress to protect the crops in an eco-friendly manner. Piperine exhibits diverse pharmacological activities like antihypertensive, antiplatelets, antioxidant, antitumor, antipyretic, analgesic, anti-inflammatory, anti-diarrheal, antibacterial, antifungal, anti-reproductive, insecticidal activities. In the present investigation, the biological method of disease management of marginal leaf gall transmitted by Liothrips karnyi has been undertaken. The biological control of leaf diseases has been significant on the increased reflection of environmental problems over pesticide uses.

The study of psychological problems of developmental stages of the family in modern times

2021 ◽  
Vol 68 (07) ◽  
pp. 56-60
Author(s):  
Teybə Aslan qızı Əfəndiyeva ◽  
Keyword(s):  
Developmental Stages ◽  
Life Goals ◽  
Social Changes ◽  
Family Development ◽  
Social Functions ◽  
Development Zone ◽  
Modern Times ◽  
The Social ◽  
The Family ◽  
Problem Family

The family is an integral part of society. More precisely, the family can be called the primary social group. We know that the family is a key component of the social structure of any society, performs various social functions and plays a key role in the development of society. As the society developed socio-economically and culturally in the ups and downs of the historical process, the family developed along with it and gained new features. Let's look at some definitions of the family in modern encyclopedias and dictionaries: The family is a small group based on marriage or blood relationship. Its members are connected to each other by domestic unity, mutual moral responsibility and mutual assistance. The innovations of each stage of family development, the immediate development zone and the possible forms of fixation or regression in the family development are all given in separate stages of development. The highlighted stages not only reflect the social changes in the family, but also the changes in life goals, values and social roles of family members through their prism. Keywords: Development, psychology, problem, family, social, system, relationships, internal, roles

scholarly journals Annexins: From Structure to Function

2002 ◽  
Vol 82 (2) ◽  
pp. 331-371 ◽  
Author(s):  
Volker Gerke ◽  
Stephen E. Moss
Keyword(s):  
Neutrophil Migration ◽  
Molecular Structures ◽  
Dominant Negative ◽  
Antiphospholipid Antibody ◽  
Antiphospholipid Antibody Syndrome ◽  
Core Domain ◽  
Knock Out ◽  
The Family ◽  
Conserved Core

Annexins are Ca2+and phospholipid binding proteins forming an evolutionary conserved multigene family with members of the family being expressed throughout animal and plant kingdoms. Structurally, annexins are characterized by a highly α-helical and tightly packed protein core domain considered to represent a Ca2+-regulated membrane binding module. Many of the annexin cores have been crystallized, and their molecular structures reveal interesting features that include the architecture of the annexin-type Ca2+binding sites and a central hydrophilic pore proposed to function as a Ca2+channel. In addition to the conserved core, all annexins contain a second principal domain. This domain, which NH2-terminally precedes the core, is unique for a given member of the family and most likely specifies individual annexin properties in vivo. Cellular and animal knock-out models as well as dominant-negative mutants have recently been established for a number of annexins, and the effects of such manipulations are strikingly different for different members of the family. At least for some annexins, it appears that they participate in the regulation of membrane organization and membrane traffic and the regulation of ion (Ca2+) currents across membranes or Ca2+concentrations within cells. Although annexins lack signal sequences for secretion, some members of the family have also been identified extracellularly where they can act as receptors for serum proteases on the endothelium as well as inhibitors of neutrophil migration and blood coagulation. Finally, deregulations in annexin expression and activity have been correlated with human diseases, e.g., in acute promyelocytic leukemia and the antiphospholipid antibody syndrome, and the term annexinopathies has been coined.

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