1 材料与方法
1.1 供试家蚕
1.2 试验设计
1.3 血淋巴生化指标分析
1.4 家蚕脂肪体蛋白质组分析
1.4.1 家蚕脂肪体的收集
1.4.2 家蚕总蛋白的提取
1.4.3 蛋白质的消化和肽段的标记
1.4.4 肽段的分离及纯化
1.4.5 蛋白质的鉴定和定量分析
1.5 数据统计分析
2 结果与分析
2.1 添饲葡萄糖后家蚕体重变化
图1 添饲不同浓度葡萄糖对家蚕体重增长趋势的影响同一时期,数据柱标有不同小写字母表示组间差异显著(P<0.05),标有相同字母或无字母表示组间差异不显著(P>0.05)。 Fig.1 Effects of supplementation with different concentrations of glucose on body weight growth trend of silkworms At the same period, data bars with different lowercase letters indicate significant difference between groups (P<0.05), while with the same letters or no letters indicate no significant difference between groups (P>0.05). |
2.2 添饲葡萄糖后家蚕血淋巴生化指标变化
图2 添饲葡萄糖对家蚕血淋巴生化指标的影响数据柱标有不同小写字母表示添饲2.0%葡萄糖组与对照组之间差异显著(P<0.05)。 Fig.2 Effects of glucose supplementation on hemolymph biochemical indices of silkworms Data bars with different lowercase letters indicate significant difference between the 2.0% glucose supplementation group and the control group (P<0.05). |
2.3 添饲葡萄糖后家蚕脂肪体蛋白质组表达差异分析
2.3.1 家蚕脂肪体提取的总蛋白的质量
表1 总蛋白定量结果Table 1 Quantitative results of total protein |
| 样品编号 Sample No. | 总蛋白Total protein | ||
|---|---|---|---|
| 浓度 Concentration/(μg/μL) | 体积 Volume/μL | 总量 Total mass/μg | |
| CK1 | 1.27 | 600 | 765 |
| CK2 | 1.09 | 600 | 657 |
| T1 | 1.48 | 600 | 890 |
| T2 | 1.02 | 600 | 613 |
CK1和CK2为对照组的样品,T1和T2为添饲2.0%葡萄糖组的样品。 | |
CK1 and CK2 are samples from the control group, while T1 and T2 are samples from the 2.0% glucose supplementation group. |
图3 家蚕脂肪体总蛋白SDS-PAGE图泳道1~4分别为家蚕脂肪体样品CK1、CK2、T1、T2,其中CK1、CK2为对照组的样品,T1、T2为添饲2.0%葡萄糖组的样品,泳道M为蛋白质Marker(14~94 kDa) 。 Fig.3 Total protein SDS-PAGE image of fat body in silkworms Lanes 1 to 4 correspond to silkworm fat body samples CK1, CK2, T1, and T2, respectively, CK1, CK2 are samples from the control group, and T1 and T2 are samples from the 2.0% glucose supplementation group, while lane M is the protein Marker (14 to 94 kDa). |
2.3.2 家蚕脂肪体蛋白质谱鉴定、功能注释及聚类分析
图5 添饲葡萄糖家蚕脂肪体差异表达蛋白KEGG通路类型分布图Fig.5 Distribution diagram of KEGG pathway types for differentially expressed proteins in fat body of silkworms fed with glucose |
2.3.3 家蚕脂肪体差异表达蛋白的互作关系
图8 蛋白质-蛋白质互作网络限于篇幅,仅对中心度排在前10的关键蛋白进行注释 Due to space limitations, only the top 10 key proteins in terms of centrality were annotated。RpS9:核糖体蛋白S9 ribosomal protein S9;RpS18:核糖体蛋白S18 ribosomal subunit protein S18;RpL10A:核糖体蛋白L10A ribosomal protein L10A;RpL14:核糖体蛋白L14 ribosomal protein L14;Q1HQ34_BOMMO:F型ATP酶δ亚基 F-type ATPase delta subunit;RpS17:核糖体蛋白S17 ribosomal protein S17;RpP1:核糖核酸酶P蛋白亚基1 ribonuclease P protein subunit 1;RpL36:核糖体蛋白L36 ribosomal protein L36;Adk2:腺苷酸激酶2 adenosine kinase 2;H9JL46_BOMMO:V型质子泵ATP酶亚基Vha26 V-type proton ATPase subunit Vha26。 Fig.8 Protein-protein interaction network |

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