کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2819409 | 1569925 | 2007 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Status of genes encoding the mitochondrial S1 ribosomal protein in closely-related legumes
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کلمات کلیدی
CTABuntranslated region.RT-PCRN-terminalgene transfer - انتقال ژنamino-terminal - آمینو ترمینالEST - استcetyl trimethylammonium bromide - استاتیم ترتیل آمونیوم برومیدC-terminal - ترمینال Crapid amplification of cDNA ends - تقویت سریع cDNA به پایان می رسدGenome evolution - تکامل ژنومExpressed Sequence Tag - تکرار اظهار نظرRibosome - ریبوزوم، رناتنRace - مسابقهUTR یا untranslated regions - منطقه ترجمه نشدهmya - میاMitochondria - میتوکندریاmillion years ago - میلیون سال پیشReverse transcriptase-polymerase chain reaction - واکنش زنجیره ای واکنش زنجیره ای واکنش زنجیره ایcarboxy-terminal - کربوکسی ترمینالPlant - گیاه
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
ژنتیک
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Status of genes encoding the mitochondrial S1 ribosomal protein in closely-related legumes Status of genes encoding the mitochondrial S1 ribosomal protein in closely-related legumes](/preview/png/2819409.png)
چکیده انگلیسی
The rps1 gene, which encodes ribosomal protein S1 of the mitochondrial ribosome in flowering plants, is located in the mitochondrion of some but not all species, and this is assumed to reflect multiple gene transfers to the nucleus. We investigated its status in legumes and found that in alfalfa, sweet clover and fenugreek, the mitochondrial-located rps1 is a pseudogene, in contrast to intact, transcribed and edited rps1 genes in the mitochondria of rest harrow, pea, soybean and bean. Among these lineages, the genomic environment upstream of rps1 differs, and this contrasts with a stable downstream linkage with the first two exons of the trans-split nad5 gene. Consequently, the rps1 transcript profiles differ for each of these closely-related species, and typically do not include monocistronic rps1 or nad5 mRNAs. In alfalfa, sweet clover and fenugreek, the functional rps1 gene is located in the nucleus and it is still flanked by residual non-coding mitochondrial sequences. Notably, the upstream ones provide part of the 5â² UTR as well as the 3â² splice site of an intron preceding rps1. This exploitation of non-coding mitochondrial sequences in nuclear gene activation adds to a growing list of mechanisms by which successful transfer of mitochondrial genes is achieved.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Gene - Volume 405, Issues 1â2, 15 December 2007, Pages 108-116
Journal: Gene - Volume 405, Issues 1â2, 15 December 2007, Pages 108-116
نویسندگان
Thomas Hazle, Linda Bonen,