Q Chromosome Controls the Lethality of Interspecific Hybrids between Nicotiana tabacum and N. suaveolens
スポンサーリンク
概要
- 論文の詳細を見る
Non-viable hybrid seedlings were produced from a cross between Nicotiana tabacum (2n 48; SSTT genome) and N. suaveolens (2n 32). Our objective was to identify a N. tabacum chromosome that carried gene(s) inducing hybrid lethality in this cross. We crossed 10 monosomic lines (2n = 47; Haplo-M to Z, except for Haplo-p and Haplo-V) of N. tabacum to N. suaveolens and produced hybrids by test-tube pollination and ovule culture using synthetic media. We pollinated 178 placentae (13 to 62 per cross), cultured 5215 ovules (136 to 840 per cross), and produced a total of 85 seedlings. Of the 85 seedlings, 81 died before the cotyledonary and leaf-expansion stages of growth, while 4 from a cross to Haplo-Q produced viable hybrids. Three plants grew to maturity and flowered but one plant was infected by fungi and died at the young stage. Chromosome counting, RAPD and LSC analyses revealed that 3 viable plants were true F_1 hybrids. These results suggested that the Q chromosome of the S genome harbored a gene or genes that induced non-viable seedlings from a cross between N. tabacum and N. suaveolens.
- 日本育種学会の論文
著者
-
Marubashi Wataru
School Of Agriculture Ibaraki University
-
Onosato K
School Of Agriculture Ibaraki University
-
Onosato Katsura
School Of Agriculture Ibaraki University
関連論文
- Developmental Observation and High Temperature Rescue from Hybrid Weakness in a Cross between Japanese Rice Cultivars and Peruvian Rice Cultivar 'Jamaica'
- High levels of the cytokinin BAP suppress programmed cell death in hybrid tobacco cells (Nicotiana suaveolens×N. tabacum) expressing hybrid lethality
- Apoptotic Cell Death Observed during the Expression of Hybrid Lethality in Interspecific Hybrids between Nicotiana tabacum and N. suaveolens
- Anthocyanins of Gladiolus Cultivars and their Contribution to Flower Colors
- Characterization and Overcoming of Temperature-Dependent Lethality Exhibited by Hybrid Embryos from the Cross Nicotiana suaveolens × N.sylvestris
- Heat treatment temporarily suppresses expression of programmed cell death in hybrid tobacco cells (Nicotiana suaveolens×N. tabacum) expressing hybrid lethality
- Flavonols concerned in flower coloration of Gladiolus cultivars
- Novel Evaluation Method of Flower Senescence in Freesia (Freesia hybrida) Based on Apoptosis as an Indicator
- Possible Involvement of Auxin-Induced Ethylene in an Apoptotic Cell Death during Temperature-Sensitive Lethality Expressed by Hybrid between Nicotiana glutinosa and N. repanda
- Facile Induction of Apoptosis into Plant Cells Associated with Temperature-Sensitive Lethality Shown on Interspecific Hybrid from the Cross Nicotiana suaveolens x N. tabacum
- Time Course Analysis of Apoptotic Cell Death during Expression of Hybrid Lethality in Hybrid Tobacco Cells (Nicotiana suaveolens × N. tabacum)
- Even juvenile leaves of tobacco exhibit programmed cell death
- Programmed Cell Death Detected in Interspecific Hybrids of Nicotiana repanda × N. tomentosiformis Expressing Hybrid Lethality
- Development of Q-chromosome-specific DNA Markers in Tobacco and Their Use for Identification of a Tobacco Monosomic Line
- Temperature-Dependent Programmed Cell Death Detected in Hybrids between Nicotiana langsdorffii and N. tabacum Expressing Lethality
- Temperature-dependent Apoptosis Detected in Hybrids between Nicotiana debneyi and N. tabacum Expressing Lethality
- Q Chromosome Controls the Lethality of Interspecific Hybrids between Nicotiana tabacum and N. suaveolens
- Bijections between topologies