Identification and evaluation of intervarietal substitution lines of rapeseed (Brassica napus L.) with donor segments affecting the direct embryo to plant conversion rate of microspore-derived embryos
Identification and evaluation of intervarietal substitution lines of rapeseed (Brassica napus L.) with donor segments affecting the direct embryo to plant conversion rate of microspore-derived embryos
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油菜种间替代系的鉴定和评价,其供体片段影响小孢子胚直接胚向植物的转化率
DOI:
10.1007/s10681-016-1732-0
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发表时间:
2016
期刊:
影响因子:
1.9
通讯作者:
Ecke W.
中科院分区:
文献类型:
--
作者:
Kampouridis A;Ziese-Kubon K;Nurhasanah;Ecke W.
Microspore culture has become an important tool in many species, includingBrassicas, for the production of entirely homozygous lines, so called double haploid (DH) lines. The primary products of microspore culture are embryo-like structures, called microspore-derived embryos (MDEs). A major problem in the development of DH lines is the often low efficiency of Direct Embryo to Plant Conversion (DEPC). During the development of DH populations, favourable alleles of genes affecting the DEPC rate will be under selection. This selection should lead to skewed segregations at markers linked to these genes. By comparing skewed marker segregations in four populations, a population of doubled haploid plantlets, a haploid and a doubled haploid MDE population, and a BC1population, 20 genomic regions were identified, which showed patterns of skewed segregations across the populations, indicative of the segregation of genetic factors controlling DEPC rates. Four regions and eight intervarietal substitution lines (ISLs) with donor segments overlapping these regions were selected for further studies. Three ISLs, ER654, ER661 and ER653 with DEPC rates of 49.1, 54.5 and 57.2 %, showed significantly reduced DEPC rates compared to the rate of the recurrent parent of 76.5 %. By comparing donor segments between the significant and the non-significant lines, eight genomic regions were identified that may contain genetic factors controlling the DEPC rate in rapeseed. These regions range in size from 0 (represented by just one marker) to 16.5 cM and cover together just 1.33 % of the genetic map used to characterize the donor segments in the ISLs.
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影响因子:
3
作者:
L. Kott;W. Beversdorf
通讯作者:
W. Beversdorf
影响因子:
1.9
作者:
Anthimos Kampouridis;Katharina Ziese-Kubon;Nurhasanah;W. Ecke
通讯作者:
Anthimos Kampouridis;Katharina Ziese-Kubon;Nurhasanah;W. Ecke
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
Sarah Klutschewski
通讯作者:
Sarah Klutschewski
DOI:
--
发表时间:
2000
期刊:
影响因子:
--
作者:
L. Nehlin;C. Möllers;P. Bergman;K. Glimelius
通讯作者:
K. Glimelius
DOI:
--
发表时间:
1995
期刊:
影响因子:
--
作者:
S. Albrecht;C. Möllers;G. Röbbelen
通讯作者:
G. Röbbelen