摘要
测定了红菜薹与甘蓝型油菜的种间杂种及回交后的代Ca、Mg、Fe、Zn 4种矿质元素含量,并对各矿质元素的种间杂种优势及遗传规律进行研究与分析。结果表明:Ca、Fe表现中亲优势或超亲优势,但优势表现不显著;杂交及回交后代中Ca、Mg、Fe、Zn元素含量表现为不同程度的波动,多数元素的变异幅度和变异系数的最大值出现在BC 1代,表明BC 1代是进行选择并改良种间杂种后代矿质元素含量的关键世代;Ca、Mg、Fe 3种矿质元素同时表现为在BC 5代时的含量接近轮回亲本,并表现出一定程度的超亲优势。这些结果有助于了解红菜薹与甘蓝型油菜杂交后代矿质元素在世代间的变化情况,为红菜薹品质育种提供材料及理论基础。
The heterosis and genetic regulation of four mineral elements(Ca、Mg、Fe and Zn)among hybrids and backcross generations of Brassica napus L.×Brassica compestris L.Var.Purpurea Bailey were studied.The results show that Ca and Fe have mid-parent dominance or super-parent dominance,but the dominance is not significant;the element contents of Ca,Mg,Fe,and Zn in hybrid and backcross progeny fluctuate to varying degrees,and the variation amplitude and variation of most elements The maximum value of the coefficient appears in BC1 generation.It shows that the BC1 generation is the key generation to select and improve the mineral element content of interspecific hybrid offspring;The contents of Ca,Mg and Fe were close to or over recurrent parents in the fifth backcross populations;These results were helpful to find out the variational regulation of mineral elements between hybrids and backcross generations of Brassica napus L.×Brassica compestris L.Var.Purpurea Bailey,at the same time,some germplasm resources for quality breeding of Brassica compestris L.Var.Purpurea Bailey would be provided.
作者
张艳
ZHANG Yan(School of Tourism Management,Huzhou Vocational and Technological College,Huzhou 313000,China)
出处
《信阳农林学院学报》
2023年第4期91-95,102,共6页
Journal of Xinyang Agriculture and Forestry University
关键词
遗传分析
矿质元素
红菜薹
甘蓝型油菜
种间杂交
genetic analysis
mineral element
Brassica compestris L.Var.Purpurea Bailey
Brassica napus L.
interspecific cross
