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- Title
花生二倍体野生种Arachis duranensis 和A. ipaensis 新种间 杂种的创制及鉴定.
- Authors
杜培; 王倩; 刘华; 付留洋; 秦利; 徐静; 张忠信; 李晨玉; 董文召; 黄冰艳; 张新友
- Abstract
Diploid wild species Arachis duranensis (AA) and A. ipaensis (BB) are the most possible ancestors of culti⁃ vated peanut. Peanuts synthesized by ancestral species are important materials for studying the origin and evolution. In this study, a new interspecific hybrid W1824 of A. duranensis (PI 497262) and A. ipaensis (PI 468322) was created and identified by hybridization, tissue culture, oligonucleotide probe staining FISH (OS FISH) and genomic in situ hybridiza⁃ tion (GISH). Analysis of pollen fertility, meiosis behavior and phenotypic traits showed that W1824 had high sterility, its average chromosome configuration was 0.5 III + 3.5 II + 11.5 I, and its height of main stem, length of first primary branch and leaf area showed super-parent advantage. This indicated that the two accessions PI 497262 and PI 468322 had high cross-compatibility and suggested that the tetraploid peanut synthesized using the two accessions might have significant⁃ ly higher biological yield than their parents and unstable inheritance in chromosomal level.
- Subjects
NUCLEIC acid probes; PALYNOLOGY; TISSUE culture; LEAF area; ARACHIS; PLANT hybridization; PLANT fertility
- Publication
Chinese Journal of Oil Crop Sciences, 2022, Vol 44, Issue 3, p515
- ISSN
1007-9084
- Publication type
Article
- DOI
10.19802/j.issn.1007-9084.2021132