摘要
为了解二倍体马铃薯块茎中铁和锌含量变化范围，并估算铁和锌含量的广义遗传力，为今后马铃薯铁和锌的生物强化提供基础材料和数据。32个适应长日照的二倍体马铃薯富利亚（Solanum phureja）和窄刀薯（S．stenotomum）杂种无性系（S．phureja-S．stenotomum）以及四倍体品种克新13号（对照）采用随机区组设计，3次重复，在黑龙江省讷河市种植2年，分析块茎铁和锌的含量。二倍体马铃薯铁含量的变化范围是36．9～54．1μg／gDW，其中28个二倍体无性系铁含量显著高于四倍体品种；锌含量的变化范围是17．7～34．2μg／gDW，亦有28个二倍体无性系锌含量显著高于四倍体品种。二倍体马铃薯铁的广义遗传力估值为0．8068，95％的置信区间为0．6043—0．9057；锌的广义遗传力估值为0．6236，95％的置信区间为0．2290—0．8163。二倍体块茎铁和锌含量不存在相关性。这些结果表明，S．phureja-S．stenotomum杂种是改善马铃薯品种铁和锌含量宝贵的资源材料。
The purposes of this research were to understand the range of iron and zinc contents in diploid potatoes and estimate broad-sense heritability for iron and zinc in order to provide basic materials and data for biofortification of potatoes. Thirty-two long-day adapted diploid potato hybrid clones of Solanum phureja-S, stenotomum and a tetraploid variety Kexin 13 （control） were grown for two years in a randomized complete block design （RCBD） with three replicates in Nehe, Heilongjiang and iron and zinc contents were analyzed. The range of iron contents was 36.9 - 54.1 μg/g DW and twenty eight diploid clones had significant higher iron content than the tetraploid control variety ‘ Kexin 13’ ;the range of zinc was 17.7 -34.2μg/g DW and also twenty-eight diploid clones had significant higher zinc contents than the control. The broad-sense heritability in its 95% confidence interval for iron was 0. 8068 （0. 6043 - 0. 9057 ） and 0. 6236 （0. 2290 - 0.8163 ） for zinc. No correlation was found between iron and zinc contents in these diploid potatoes. These results suggest that these Solanum phureja-S, stenotomum hybrid clones are valuable germplasm for iron and zinc biofortification of potatoes.
出处
《作物杂志》
CAS
CSCD
北大核心
2014年第4期59-64,共6页
Crops
基金
黑龙江省科技攻关计划:马铃薯鲜食新品种(系)资源的引进
筛选及评价分析(GA08B102)
关键词
马铃薯
富利亚
窄刀薯
铁
锌
广义遗传力
Potato
S. phureja
S. stenotomum
Iron
Zinc
Broad-sense heritability
