| Title |
Functional loss of all ndh genes in an otherwise relatively unaltered plastid genome of the holoparasitic flowering plant Cuscuta reflexa
|
|---|---|
| Published in |
Plant Molecular Biology, January 1994
|
| DOI | 10.1007/bf00040588 |
| Pubmed ID | |
| Authors |
Gerd Haberhausen, Klaus Zetsche |
| Abstract |
We have cloned and sequenced an area of about 9.0 kb of the plastid DNA (ptDNA) from the holoparasitic flowering plant Cuscuta reflexa to investigate the evolutionary response of plastid genes to a reduced selective pressure. The region contains genes for the 16S rRNA, a subunit of a plastid NAD(P)H dehydrogenase (ndhB), three transfer RNAs (trnA, trnI, trnV) as well as the gene coding for the ribosomal protein S7 (rps7). While the other genes are strongly conserved in C. reflexa, the ndhB gene is a pseudogene due to many frameshift mutations. In addition we used heterologous gene probes to identify the other ndh genes encoded by the plastid genome in higher plants. No hybridization signals could be obtained, suggesting that these genes are either lost or strongly altered in the ptDNA of C. reflexa. Together with evidence of deleted genes in the ptDNA of C. reflexa, the plastid genome can be grouped into four classes reflecting a different evolutionary rate in each case. The phylogenetic position of Cuscuta and the significance of ndh genes in the plastid genome of higher plants are discussed. |
Mendeley readers
The data shown below were compiled from readership statistics for 22 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Germany | 2 | 9% |
| Canada | 1 | 5% |
| Unknown | 19 | 86% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Bachelor | 4 | 18% |
| Student > Ph. D. Student | 4 | 18% |
| Researcher | 3 | 14% |
| Professor | 2 | 9% |
| Other | 2 | 9% |
| Other | 3 | 14% |
| Unknown | 4 | 18% |
| Readers by discipline | Count | As % |
|---|---|---|
| Agricultural and Biological Sciences | 14 | 64% |
| Biochemistry, Genetics and Molecular Biology | 3 | 14% |
| Medicine and Dentistry | 1 | 5% |
| Unknown | 4 | 18% |
Attention Score in Context
This research output has an Altmetric Attention Score of 3. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 20 February 2022.
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#7,597,150
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Outputs from Plant Molecular Biology
#984
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#14,550
of 71,650 outputs
Outputs of similar age from Plant Molecular Biology
#23
of 51 outputs
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