Gene duplication and an accelerated evolutionary rate in 11S globulin genes are associated with higher protein synthesis in dicots as compared to monocotsReportar como inadecuado




Gene duplication and an accelerated evolutionary rate in 11S globulin genes are associated with higher protein synthesis in dicots as compared to monocots - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

BMC Evolutionary Biology

, 12:15

First Online: 31 January 2012Received: 15 August 2011Accepted: 31 January 2012

Abstract

BackgroundSeed storage proteins are a major source of dietary protein, and the content of such proteins determines both the quantity and quality of crop yield. Significantly, examination of the protein content in the seeds of crop plants shows a distinct difference between monocots and dicots. Thus, it is expected that there are different evolutionary patterns in the genes underlying protein synthesis in the seeds of these two groups of plants.

ResultsGene duplication, evolutionary rate and positive selection of a major gene family of seed storage proteins the 11S globulin genes, were compared in dicots and monocots. The results, obtained from five species in each group, show more gene duplications, a higher evolutionary rate and positive selections of this gene family in dicots, which are rich in 11S globulins, but not in the monocots.

ConclusionOur findings provide evidence to support the suggestion that gene duplication and an accelerated evolutionary rate may be associated with higher protein synthesis in dicots as compared to monocots.

Keywords11S globulin dicot evolutionary rate gene duplication legumins monocot positive selection AbbreviationsBEBthe Bayes empirical Bayes

BeTsBest Hits

COGClusters of Orthologous Groups

HMWhigh molecular weight

JTTJones-Taylor-Thornton

LRTlikelihood ratio test

NJNeighbor Joining

WGDwhole genome duplication

Electronic supplementary materialThe online version of this article doi:10.1186-1471-2148-12-15 contains supplementary material, which is available to authorized users.

Chun Li, Meng Li contributed equally to this work.

Download fulltext PDF



Autor: Chun Li - Meng Li - Jim M Dunwell - Yuan-Ming Zhang

Fuente: https://link.springer.com/article/10.1186/1471-2148-12-15







Documentos relacionados