Genetic diversity and the relationship of Nibea japonica and Nibea miichthioides using mitochondrial DNA gene

2013 ◽  
Vol 48 ◽  
pp. 274-280 ◽  
Author(s):  
Xue-jun Chai ◽  
Ze-hui Hu ◽  
Yue-bin Wang ◽  
Min Sun
Keyword(s):  
Genetic Diversity ◽  
Mitochondrial Dna ◽  
Relationship Of ◽  
The Relationship

scholarly journals The male sterility-associated pcf gene and the normal atp9-1 gene in Petunia are located on different mitochondrial DNA molecules.

Genetics ◽  
1991 ◽  
Vol 129 (3) ◽  
pp. 885-895
Author(s):  
O Folkerts ◽  
M R Hanson
Keyword(s):  
Mitochondrial Dna ◽  
Male Sterility ◽  
Nadh Dehydrogenase ◽  
Ribosomal Subunit ◽  
Cms Line ◽  
Ribosomal Subunit Protein ◽  
Mtdna Organization ◽  
Relationship Of ◽  
The Relationship ◽  
Functional Copy

Abstract A mitochondrial DNA (mtDNA) region termed the S-pcf locus has previously been correlated with cytoplasmic male sterility (CMS) in Petunia. In order to understand the relationship of the S-pcf locus to homologous sequences found elsewhere in mtDNAs of both CMS and fertile lines, the structure of the mitochondrial genome of CMS Petunia line 3688 was determined by cosmid walking. The S-pcf locus, which includes the only copies of genes for NADH dehydrogenase subunit 3 (nad3) and small ribosomal subunit protein 12 (rps12) was found to be located on a circular map of 396 kb, while a second almost identical circular map of 407 kb carries the only copies of the genes for 18S and 5S rRNA (rrn18 and rrn5), the only copy of a conserved unidentified gene (orf25), and the only known functional copy of atp9. Three different copies of a recombination repeat were found in six genomic environments, predicting sub-genomic circles of 277, 266 and 130 kb. The ratio of atp9 to S-pcf mtDNA sequences was approximately 1.5 to 1, indicating that sub-genomic molecules carrying these genes differ in abundance. Comparison of the mtDNA organization of the CMS line with that of the master circle of fertile Petunia line 3704 reveals numerous changes in order and orientation of ten different sectors.

scholarly journals Genetic diversity among flue-cured tobacco cultivars on the basis of AFLP markers

2009 ◽  
Vol 45 (No. 4) ◽  
pp. 155-159 ◽  
Author(s):  
X.Z. Liu ◽  
C.S. He ◽  
Y.M. Yang ◽  
H.Y. Zhang
Keyword(s):  
Genetic Diversity ◽  
Yunnan Province ◽  
Southwest China ◽  
Germplasm Conservation ◽  
Research Centre ◽  
Aflp Data ◽  
Breeding Research ◽  
Polymorphic Bands ◽  
Relationship Of ◽  
The Relationship

AFLP analyses were used to assess the genetic similarity among selected accessions at the South China Tobacco Breeding Research Centre (Yunnan province, Southwest China). 154 AFLP polymorphic fragments out of 561 fragments were used to assess the genetic diversity among 28 tobacco accessions. The average number of polymorphic bands per AFLP primer pair was 15.4. AFLPs seemed to be an effective classification tools for germplasm conservation and breeding. Limited genetic variation was detected within this group of accessions. The relationship of cultivars was estimated by cluster analysis based on AFLP data.

scholarly journals Genetic diversity and relationship of Indian cattle inferred from microsatellite and mitochondrial DNA markers

BMC Genetics ◽  
2015 ◽  
Vol 16 (1) ◽  
Author(s):  
Rekha Sharma ◽  
Amit Kishore ◽  
Manishi Mukesh ◽  
Sonika Ahlawat ◽  
Avishek Maitra ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Mitochondrial Dna ◽  
Dna Markers ◽  
Indian Cattle ◽  
Relationship Of

scholarly journals Patterns of mating and mitochondrial DNA inheritance in the agaric Basidiomycete Coprinus cinereus.

Genetics ◽  
1988 ◽  
Vol 118 (2) ◽  
pp. 213-220
Author(s):  
G May ◽  
J W Taylor
Keyword(s):  
Mitochondrial Dna ◽  
Mating System ◽  
Reproductive Biology ◽  
Nuclear Migration ◽  
Coprinus Cinereus ◽  
Mtdna Inheritance ◽  
Mtdna Evolution ◽  
Relationship Of ◽  
The Relationship ◽  
Mitochondrial Dna Inheritance

Abstract Patterns of mating and mitochondrial DNA (mtDNA) inheritance were investigated for the Basidiomycete, Coprinus cinereus in order to better understand the relationship of reproductive biology and mtDNA evolution in fungi. Results showed that the unique mating system of basidiomycetes can lead to the formation of mitochondrial mosaics (i.e., colonies composed of sectors differing in mtDNA). Mitochondria do not migrate along with nuclei during mating. Intracellular mixed or recombinant mtDNA molecules were not observed. Interestingly, it was found that mating asymmetry, caused by nonreciprocal nuclear migration, may be an important part of the reproductive biology of C. cinereus.

scholarly journals Evaluation of the Genetic Diversity of Xylella fastidiosa Strains from Citrus and Coffee Hosts by Single-Nucleotide Polymorphism Markers

2007 ◽  
Vol 97 (12) ◽  
pp. 1543-1549 ◽  
Author(s):  
Ester Wickert ◽  
Marcos Antonio Machado ◽  
Eliana G. M. Lemos
Keyword(s):  
Genetic Diversity ◽  
Single Nucleotide Polymorphism ◽  
Dna Sequences ◽  
Xylella Fastidiosa ◽  
Snp Markers ◽  
Nucleotide Polymorphism ◽  
Single Nucleotide ◽  
Relationship Of ◽  
First Time ◽  
The Relationship

The aim of this study was to obtain information about genetic diversity and make some inferences about the relationship of 27 strains of Xylella fastidiosa from different hosts and distinct geographical areas. Single-nucleotide polymorphism (SNP) molecular markers were identified in DNA sequences from 16 distinct regions of the genome of 24 strains of X. fastidiosa from coffee and citrus plants. Among the Brazilian strains, coffee-dependent strains have a greater number of SNPs (10 to 24 SNPs) than the citrus-based strains (2 to 12 SNPs); all the strains were compared with the sequenced strain 9a5c. The identified SNP markers were able to distinguish, for the first time, strains from citrus plants and coffee and showed that strains from coffee present higher genetic diversity than the others. These markers also have proven to be efficient for discriminating strains from the same host obtained from different geographic regions. X. fastidiosa, the causal agent of citrus variegated chlorosis, possesses genetic diversity, and the SNP markers were highly efficient for discriminating genetically close organisms.

scholarly journals Genetic diversity and relationship of Dulong chickens using mitochondrial DNA control region

2019 ◽  
Vol 5 (1) ◽  
pp. 275-280 ◽  
Author(s):  
Qingqing Li ◽  
Pu Zhang ◽  
Momo Li ◽  
Lu Li ◽  
Yaodong Hu ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Mitochondrial Dna ◽  
Control Region ◽  
Mitochondrial Dna Control Region ◽  
Relationship Of

scholarly journals Mitochondrial DNA and disease: What happens when things go wrong

2005 ◽  
Vol 27 (3) ◽  
pp. 24-27
Author(s):  
Anthony Schapira
Keyword(s):  
Mitochondrial Dna ◽  
Human Disease ◽  
Citric Acid Cycle ◽  
Urea Cycle ◽  
Environmental Toxins ◽  
Mitochondrial Genomes ◽  
Human Pathology ◽  
Cellular Biochemistry ◽  
Relationship Of ◽  
The Relationship

Mitochondria are ubiquitous in eukaryotic cells and one of their important functions is to provide ATP via oxidative phosphorylation (OXPHOS). The mitochondria also host other biochemical pathways, including -oxidation, Krebs' citric acid cycle and parts of the urea cycle. Thus, the mitochondria play a pivotal role in cellular biochemistry. The relationship of mitochondria to human disease has been identified only recently, but has now become one of the most rapidly expanding areas of human pathology. Mitochondrial disorders may be a consequence of inherited defects of either the nuclear or mitochondrial genomes or, alternatively, may be due to endogenous or exogenous environmental toxins. This article will focus upon abnormalities of mitochondrial DNA (mtDNA) and human disease.

scholarly journals Phylogenetic Analysis of Rasbora spp. Based on the Mitochondrial DNA COI gene in Harapan Forest

2021 ◽  
Vol 21 (1) ◽  
pp. 89
Author(s):  
Ahmad Subari ◽  
Abdul Razak ◽  
Ramadhan Sumarmin
Keyword(s):  
Phylogenetic Analysis ◽  
Mitochondrial Dna ◽  
Genetic Distance ◽  
Secondary Data ◽  
Branch Length ◽  
Coi Gene ◽  
Lowland Tropical Forest ◽  
Distance Analysis ◽  
Relationship Of ◽  
The Relationship

Harapan forest is the remaining lowland tropical forest in Sumatra which represents about 20 percent of the biodiversity on the island of Sumatra. There are several Rasbora species found in the Sungai Kapas Tengah River Refuge in the Harapan Jambi Forest that the relationship is not yet known.This research aims to know kinship and genetic distance several species of Rasbora from Sungai Kapas Tengah, Hutan Harapan Jambi. The method in this research using secondary data from the NCBI website ((National Center for Biotechnology Information). The data taken, namelynucleotide sequence from the Cytochrome Oxidase I (COI) gene in mitochondrial DNA. The Rasbora species analyzed were Rasbora from identification results in the Sungai Kapas Tengah River Refuge, Harapan Jambi Forest, consisting of, Rasbora bankanensis, R. caudimaculata, R. cf. sumatrana, R. dusonensis, R. elegans, R. sumatrana, and R. trilineata. Based on phylogenetic analysis, the location of the branch length in each Rasbora species, the closest kinship is owned byR. sumatrana and R. elegans species. Based on the results of genetic distance analysis, the closest genetic distance was the species R. elegans and R. sumatrana, with a distance value of 0.023 (2.3%). While the farthest genetic distance between R. bankanensis and R. caudimaculata, with a distance value of 0.172 (17.2%).Based on research results It can be concluded that R. bankanensis has a greater kinship and genetic distance value than other Rasbora species, so that this species forms a separate group. Meanwhile, 5 other species have kinship and the value of close genetic distance so that these species are united in the same group. For future researchers, it is hoped that some additional families of fish species will be analyzed for phylogenetic analysis in Sungai Kapas, Hutan Harapan Jambi, so that they can find out the relationship of several other species.

The relationship of the scleractinian corals to the rugose corals

Paleobiology ◽  
1980 ◽  
Vol 6 (02) ◽  
pp. 146-160 ◽  
Author(s):  
William A. Oliver
Keyword(s):  
Critical Points ◽  
Scleractinian Corals ◽  
Convincing Evidence ◽  
Early Triassic ◽  
Rugose Corals ◽  
History Of ◽  
The Subject ◽  
Relationship Of ◽  
The Relationship ◽  
Biologic Factors

The Mesozoic-Cenozoic coral Order Scleractinia has been suggested to have originated or evolved (1) by direct descent from the Paleozoic Order Rugosa or (2) by the development of a skeleton in members of one of the anemone groups that probably have existed throughout Phanerozoic time. In spite of much work on the subject, advocates of the direct descent hypothesis have failed to find convincing evidence of this relationship. Critical points are:(1) Rugosan septal insertion is serial; Scleractinian insertion is cyclic; no intermediate stages have been demonstrated. Apparent intermediates are Scleractinia having bilateral cyclic insertion or teratological Rugosa.(2) There is convincing evidence that the skeletons of many Rugosa were calcitic and none are known to be or to have been aragonitic. In contrast, the skeletons of all living Scleractinia are aragonitic and there is evidence that fossil Scleractinia were aragonitic also. The mineralogic difference is almost certainly due to intrinsic biologic factors.(3) No early Triassic corals of either group are known. This fact is not compelling (by itself) but is important in connection with points 1 and 2, because, given direct descent, both changes took place during this only stage in the history of the two groups in which there are no known corals.

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