| 李红霞,魏亦勤,董建力,裘敏,张双喜,刘旺清.宁夏近50年不同时期小麦品种高分子量麦谷蛋白亚基遗传变异分析[J].干旱地区农业研究,2006,(4):204~210 |
| 宁夏近50年不同时期小麦品种高分子量麦谷蛋白亚基遗传变异分析 |
| Variation of high molecμlar weight glutenin subunits of wheat cultivars in different periods in Ningxia |
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| DOI：10.7606/j.issn.1000-7601.2006.04.43 |
| 中文关键词: 小麦 高分子量麦谷蛋白亚基 遗传变异 宁夏 |
| 英文关键词:wheat HMW-GS variation analysis |
| 基金项目:宁夏自然科学基金资助项目(C02024) |
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| 中文摘要: |
| 采用SDS十二烷基磺酸钠聚丙烯酰胺凝胶电泳技术,对宁夏50年来不同历史时期主要推广小麦品种的高分子量麦谷蛋白亚基(Glu-1位点)遗传变异进行了研究。结果表明:在这些品种中,Glu-1位点具有较丰富的遗传变异,并检测到10种亚基和13种亚基组合类型;品质评分在510之间,平均8.2分,各时期品种品质平均评分呈缓慢上升趋势,且1980年以后育成品种中5+10(Glu-D1位点)、17+18(Glu-B1位点)亚基出现频率明显增加,说明各育种单位已充分重视将具有优良品质遗传的材料应用于实践。33个品种中15个具有5+10亚基,9个具有17+18亚基,13个具有2*(Glu-A1)亚基,可供优质小麦育种利用。 |
| 英文摘要: |
| The compositions of high-molecular-weight glutenin subunit(HMW-GS)of 33 wheat cultivars that had been popularized in ningxia province during recent 50 years were analyzed by using SDS-PAGE.The results showed that the HMW-GS composition of 33 cultivars was abundant.10 subunits and 13 subunit combination patterns were detected in these cultivars.The main quality score of 33 cultivars ranged from 5 to 10 with average 8.2.Although the average quality score of these cultivars raised slowly,the frequency of 5+10 subunit of all cultivars had been increased.15 cultivars carried 5+10 high-quality subunits,9 cultivars carried 17+18 subunits and 13 cultivars carried 2* subunits,which can be utilized in the quality breeding program. |
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