The gene distribution in the genomes of pea, tomato and date palm

FEBS Letters

Han, David Tran³  Benslimane, Abdel-Ali²  Rode, André¹  Barakat, Abdelali³  Bernardi, Giorgio³ 

[1] Institut de Biotechnologie des Plantes, Bâtiment 630, Université Paris Sud, F-91405 Orsay, France;Laboratoire des Sciences des Aliments, Faculté des Sciences Semlalia, P.O. Box S15, Marrakech, Morocco;Laboratoire de Génétique Moléculaire, Institut Jacques Monod, 2, Place Jusssieu, F-75005 Paris, France

关键词: Isochore;    Gene;    Genome;    Plant;    BAMD;    3;    6-bis(acetatomercurimethyl)-1;    4-dioxane;    EST(s);    expressed sequence tag(s);    GC;    molar fraction of guanine+cytosine in DNA;    GC3;    average GC level of third codon positions of genes;    ORF;    open reading frame;    PCR;    polymerase chain reaction;   

DOI  :  10.1016/S0014-5793(99)01587-2

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

The vast majority of genes of maize, rice, barley and wheat are contained in long gene-rich regions (collectively called the ‘gene space’) separated by long gene-empty regions. The gene space covers a narrow, 0.8–1.6%, GC range, possibly because of the presence of abundant transposons. Here we report that the gene space is not an exclusive property of Gramineae, because it also exists in the large genome of pea (5000 Mb). Moreover, the gene space is not just dependent upon genome size, since a gene space is found in rice (415 Mb), but not in Arabidopsis (120 Mb), nor in two other plants investigated in the present work, date palm (250 Mb) and tomato (1000 Mb).

【 授权许可】

Unknown