麦类远缘杂交种及其与披碱草属、野大麦属、赖草属、冰草属和新麦草属杂种的细胞遗传学研究（禾本科：小麦族）。
Cytogenetics of Elymus magellanicus and its intra- and inter-generic hybrids with Pseudoroegneria spicata, Hordeum violaceum, E. trachycaulus, E. lanceolatus, and E. glaucus (Poaceae: Triticeae).
出版信息
Genome. 1993 Feb;36(1):72-6. doi: 10.1139/g93-010.
This paper describes the cytogenetics of the South American grass Elymus magellanicus (2n = 4x = 28) and its inter- and intra-generic hybrids with North American Pseudoroegneria spicata (2n = 2x = 14; SS), Iranian Hordeum violaceum (2n = 2x = 14; HH), and North American E. trachycaulus (2n = 4x = 28; SSHH), E. lanceolatus (2n = 4x = 28; SSHH), and E. glaucus (2n = 4x = 28; SSHH). Chromosome pairing in the F1 hybrid of E. magellanicus x P. spicata (2n = 3x = 21) averaged 4.09 bivalents per cell. Bivalent frequencies in the E. magellanicus x H. violaceum (2n = 3x = 21) averaged 4.86 bivalents per cell. Bivalent formation (frequencies) in hybrids between North and South American tetraploids averaged 11.42 in E. magellanicus x E. trachycaulus, 13.02 in E. magellanicus x E. lanceolatus, and 10.91 in E. magellanicus x E. glaucus. Meiotic data demonstrated that E. magellanicus is an allotetraploid having the same basic genomes (SSHH) as North American E. trachycaulus, E. lanceolatus, and E. glaucus.
本文描述了南美草 Elymus magellanicus（2n = 4x = 28）的细胞遗传学及其与北美 Pseudoroegneria spicata（2n = 2x = 14；SS）、伊朗 Hordeum violaceum（2n = 2x = 14；HH）以及北美 E. trachycaulus（2n = 4x = 28；SSHH）、E. lanceolatus（2n = 4x = 28；SSHH）和 E. glaucus（2n = 4x = 28；SSHH）的种间和属间杂种的细胞遗传学。E. magellanicus x P. spicata（2n = 3x = 21）F1 杂种的染色体配对平均每细胞有 4.09 个二价体。E. magellanicus x H. violaceum（2n = 3x = 21）的二价体频率平均每细胞有 4.86 个二价体。在北美和南美四倍体之间的杂种中，二价体的形成（频率）在 E. magellanicus x E. trachycaulus 中平均为 11.42，在 E. magellanicus x E. lanceolatus 中平均为 13.02，在 E. magellanicus x E. glaucus 中平均为 10.91。减数分裂数据表明，E. magellanicus 是一个同源四倍体，具有与北美 E. trachycaulus、E. lanceolatus 和 E. glaucus 相同的基本基因组（SSHH）。
Zotero 插件