检索结果-南通市图书馆

A comparison of honeybee (Apis mellifera) queen, worker and drone larvae by RNA-Seq

在线全文

学校读者我要写书评

暂无评论

Insect Science 2019年第3期26卷 499-509页

作者： Xu-Jiang He Wu-Jun Jiang Mi Zhou Andrew B. Barron Zhi-Jiang Zeng Honeybee Research Institute Jiangxi Agricultural University Nanchang China Biomarker Technologies Co. Ltd. Beijing China 2Department of Biological Sciences Macquarie University North Ryde NSW Australia

Honeybees (Apis mellifera) have haplodiploid sex determination: males develop from unfertilized eggs and females develop from fertilized ones. The differences in larval food also determine the development of females. Here we compared the total somatic gene expression profiles of 2-day and 4-day-old drone, queen and worker larvae by RNASeq. The results from a co-expression network analysis on all expressed genes showed that 2-day-old drone and worker larvae were closer in gene expression profiles than 2-day-old queen larvae. This indicated that for young larvae (2-day-old) environmental factors such as larval diet have a greater effect on gene expression profiles than ploidy or sex determination. Drones had the most distinct gene expression profiles at the 4-day larval stage, suggesting that haploidy, or sex dramatically affects the gene expression of honeybee larvae. Drone larvae showed fewer differences in gene expression profiles at the 2-day and 4-day time points than the worker and queen larval comparisons (598 against 1190 and 1181), suggesting a different pattern of gene expression regulation during the larval development of haploid males compared to diploid females. This study indicates that early in development the queen caste has the most distinct gene expression profile, perhaps reflecting the very rapid growth and morphological specialization of this caste compared to workers and drones. Later in development the haploid male drones have the most distinct gene expression profile, perhaps reflecting the influence of ploidy or sex determination on gene expression.

关键词： caste differentiation envir on mental factors gene expression haploid and diploid honeybees larval development

PETROLOGY (3)SEDIMENTARY PETROLOGY

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Abstracts of Chinese Geological Literature 2008年第4期24卷 43-49页

20082233 Bai Bin(Department of Geology, Northwest University,Xi’an 710069, China);Yang Wenjing Sediment Provenance Analysis and Tectonic Setting Discrimination of Shanxi Formation on West Edge of Ordos Basin(Coal Geo... 详细信息

关键词： Sediment Shanxi sedimentary Petroleum strata envir

Innovation and Differentiation - the Key for Chinese Pesticide Makers

在线全文

学校读者我要写书评

暂无评论

China Chemical Reporter 2009年第8期20卷 22-22页

Nantong Jiangshan Agrochemical & ChemicalCo.,Ltd.(SH:600389)posted the sales rose 18.95% in 2008 from a year earlier to RMB3.23billion,driven by higher sales volume and increas-ing prices of glyphosate in the first half of 2008,and higher sales for chemical *** forits pesticide business alone gained 64.9% toRMB1.83 *** company’s net profit surged 175.91% toRMB302 *** was *** government’s efforts to improve environ-mental protection standards is set to give a

关键词： pesticide earlier prices profit gained alone envir

Chengdu Closes 44 Small Cement Plants

在线全文

学校读者我要写书评

暂无评论

China Chemical Reporter 2008年第1期19卷 14-14页

Chengdu of Sichuan province is actively promoting the work on energy conservation and emission *** Chengdu Power Plant and 44 small cement plants have already been closed.

关键词： Chengdu sector promoting sulfur conservation envir