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Early changes of gene activity in developing seedlings of Arabidopsis hybrids relative to parents may contribute to hybrid vigour
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Anyu Zhu Ian K. Greaves Pei‐Chuan Liu Limin Wu Elizabeth S. Dennis W. James Peacock 《The Plant journal : for cell and molecular biology》2016,88(4):597-607
Hybrid vigour (heterosis) has been used for decades in crop industries, especially in the production of maize and rice. Hybrid varieties usually exceed their parents in plant biomass and seed yield. But the molecular basis of hybrid vigour is not fully understood. In this project, we studied heterosis at early stages of seedling development in Arabidopsis hybrids derived from crossing Ler and C24 accessions. We found that early heterosis is associated with non‐additive gene expression that resulted from earlier changes in gene expression in the hybrids relative to the parents. The non‐additively expressed genes are involved in metabolic pathways, including photosynthesis, critical for plant growth. The early increased expression levels of genes involved in energy production in hybrids is associated with heterosis in the young seedlings that could be essential for biomass heterosis at later developmental stages of the plant. 相似文献
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Pierre‐François Perroud Fabian B. Haas Manuel Hiss Kristian K. Ullrich Alessandro Alboresi Mojgan Amirebrahimi Kerrie Barry Roberto Bassi Sandrine Bonhomme Haodong Chen Juliet C. Coates Tomomichi Fujita Anouchka Guyon‐Debast Daniel Lang Junyan Lin Anna Lipzen Fabien Nogué Melvin J. Oliver Inés Ponce de León Ralph S. Quatrano Catherine Rameau Bernd Reiss Ralf Reski Mariana Ricca Younousse Saidi Ning Sun Péter Szövényi Avinash Sreedasyam Jane Grimwood Gary Stacey Jeremy Schmutz Stefan A. Rensing 《The Plant journal : for cell and molecular biology》2018,95(1):168-182
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Functional network analysis of genes differentially expressed during xylogenesis in soc1ful woody Arabidopsis plants
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Nicolas Davin Patrick P. Edger Charles A. Hefer Eshchar Mizrachi Mathias Schuetz Erik Smets Alexander A. Myburg Carl J. Douglas Michael E. Schranz Frederic Lens 《The Plant journal : for cell and molecular biology》2016,86(5):376-390
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Comparison of Xiphophorus and human melanoma transcriptomes reveals conserved pathway interactions
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Yuan Lu Mikki Boswell William Boswell Susanne Kneitz Michael Hausmann Barbara Klotz Janine Regneri Markita Savage Angel Amores John Postlethwait Wesley Warren Manfred Schartl Ronald Walter 《Pigment cell & melanoma research》2018,31(4):496-508
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草地贪夜蛾雄性成虫和5龄幼虫的转录组比较分析 总被引:1,自引:0,他引:1
【目的】草地贪夜蛾Spodoptera frugiperda是一种新近入侵我国的重要害虫。本研究旨在对草地贪夜蛾雄性成虫和5龄幼虫两个不同发育阶段的转录组进行比较分析。【方法】利用高通量测序技术对草地贪夜蛾雄性成虫和5龄幼虫进行转录组测序和数据组装,并对转录组数据进行功能注释和比较分析。【结果】经de novo组装共获得209 002条转录本,平均长度为687.55 bp,N50为982 bp。共有46 198条(57.43%) unigene在至少一个数据库中获得功能注释,其中1 713条(2.13%) unigene在所有数据库中均能获得注释。在GO数据库中获得205 269条unigene的注释,主要包括68个功能分类;在KEGG数据库中共有3 408条unigene得到注释,涉及277个代谢通路。共鉴定到424个嗅觉相关的基因,并且在雄性成虫和5龄幼虫之间的表达存在差异。通过比较转录组分析,在雄性成虫中鉴定到9 162个上调和6 399个下调差异表达基因(DEGs);功能富集分析发现在上调DEGs中涉及信息素以及信号转导的代谢通路显著富集,而下调DEGs中涉及解毒相关的通路显著富集。【结论】这些转录组数据为探究草地贪夜蛾的生长发育、嗅觉相关功能基因以及候选分子靶标提供资源信息。 相似文献
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网隙裂粉韧革菌Amylostereum areolatum是松树蜂Sirex noctilio携带并传播的共生真菌,与松树蜂之间存在严格的互利共生关系,其正常生长发育是松树蜂完成生活史的关键因子之一。为研究该共生菌生长发育的相关机制,我们对共生菌菌丝最大生长速率前期(7d)和后期(12d)样本进行转录组测序,在转录水平上分析差异表达基因在共生菌生长发育中的功能。结果显示,两个不同生长时期共有差异基因2 425个,其中在共生菌最大生长速率前期样本中上调的基因有946个,下调的有1 479个。Nr注释和GO功能富集分析结果表明,共生菌最大生长速率前期的差异表达基因主要与碳水化合物代谢、蛋白质合成以及水解酶活性相关。Pathway富集分析表明,差异表达基因显著富集在糖酵解/糖异生代谢通路上,并且这些基因在共生菌最大生长速率前期的样本中显著上调,表明其可能在网隙裂粉韧革菌的生长发育中发挥重要作用。通过分析两个不同生长时期共生菌基因的表达情况,挖掘参与共生菌生长发育的关键基因,旨在为探索松树蜂与其共生菌的互利共生机制提供理论基础。 相似文献
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Gene expression profiling across ontogenetic stages in the wood white (Leptidea sinapis) reveals pathways linked to butterfly diapause regulation
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Luis Leal Venkat Talla Thomas Källman Magne Friberg Christer Wiklund Vlad Dincă Roger Vila Niclas Backström 《Molecular ecology》2018,27(4):935-948
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Rapid evolution and gene expression: a rapidly evolving Mendelian trait that silences field crickets has widespread effects on mRNA and protein expression
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![点击此处可从《Journal of evolutionary biology》网站下载免费的PDF全文](/ch/ext_images/free.gif)
S. Pascoal X. Liu T. Ly Y. Fang N. Rockliffe S. Paterson S. L. Shirran C. H. Botting N. W. Bailey 《Journal of evolutionary biology》2016,29(6):1234-1246
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Draft genome and reference transcriptomic resources for the urticating pine defoliator Thaumetopoea pityocampa (Lepidoptera: Notodontidae)
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B. Gschloessl F. Dorkeld H. Berges G. Beydon O. Bouchez M. Branco A. Bretaudeau C. Burban E. Dubois P. Gauthier E. Lhuillier J. Nichols S. Nidelet S. Rocha L. Sauné R. Streiff M. Gautier C. Kerdelhué 《Molecular ecology resources》2018,18(3):602-619