Inheritance of the branching in hybrid populations among tetraploid wheat species and the new branched spike line 166-Schakheli
Inheritance of the branching in hybrid populations among tetraploid wheat species and the new branched spike line 166-Schakheli
复制标题
DOI：
10.1007/s10722-011-9702-9
复制
发表时间：
2011-06-01
影响因子：
2
通讯作者：
Aminov, Naib Khaliq
中科院分区：
文献类型：
--
作者：
Aliyeva, Aybeniz Javad;Aminov, Naib Khaliq
小麦新分枝穗型是由小麦复合系171 ACS {[（T.硬粒小麦x Ae. tauschii Coss.）x S.燕麦属SSP. segetale Zhuk.] x T. aestivum L. '中国春'（2n = 6x = 42，AABBDD）和硬粒小麦品种T.硬粒小麦'Bereketli-95'（2n = 4x = 28，AABB）。这种分枝穗形式与迄今已知的其他分枝穗形式有显著区别。后来在这些植物的基础上发展出了分枝穗系。本研究以166-Schakheli（2n = 4x = 28，AABB）与四倍体小麦（T. polonicum L.，T. turanicum Jakubz.，T. durum Desf.）揭示分枝性状的遗传特性，研究正反交（F-1，F-2）和回交（BC 1F 1）后代的减数分裂行为。结果表明，该性状在F_2代受单隐性基因控制，但不受基因剂量的影响，染色体数目
The new branched spike form of wheat was synthesized from a cross between a complex wheat line 171ACS {[(T. durum Desf. x Ae. tauschii Coss.) x S. cereale L. ssp. segetale Zhuk.] x T. aestivum L. 'Chinese Spring'} (2n = 6x = 42, AABBDD) and durum wheat variety T. durum Desf. 'Bereketli-95' (2n = 4x = 28, AABB). This branched spike form is distinguished significantly from the other branched spike forms known so far. Later on basis of these plants have been developed the branched spike lines. This study was aimed to generate the segregating populations from reciprocal (F-1-F-3) and backcross (BC1F1-BC1F3) crosses between one of such lines-166-Schakheli (2n = 4x = 28, AABB) and tetraploid wheat species (T. polonicum L., T. turanicum Jakubz., T. durum Desf.) for revealing the inheritance character of this branching trait and study meiotic behavior in reciprocal (F-1, F-2) and backcross (BC1F1) progenies. Results showed that this trait is controlled by a single recessive gene despite certain irregularity against Mendelian law in F2 generations and does not depend on gene dosage, i.e., number of chromosomes.