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ID 11286
Eprint ID
11286
FullText URL
Title Alternative
Diallel Analysis for the Percentage of Grains with Hull Rupture in F2 Populations of Two-rowed Barley
Author
Wu, Jiri
Takeda, Kazuyoshi
Kanatani, Ryoichi
Abstract
Half diallel F2 populations crossed among eight two-rowed barley varieties with warious percentages of hull ruptured grains were raised to analyze the inheritance of the trait. The percentage of grains with hull rupture varied from 0 to 87% among the parents. The diallel analysis revealed the following: the trait was predominantly controlled by the additive genes, and the dominance effect of some parents was also significant. However, the epistatic effect of the genes was not significant. The average dominance was 0.97. The heritability value was estimated as 0.57 and 0.91 in a narrow and a broad sense, respectivelly. The percentage of grains with hull rupture showed continuous and transgressive segregations in 28 F2 populations derived from half diallel crosses among eight parents. Heritability of the trait in a broad sense was 0.43~0.80(0.65 on average) in 28 F2 populations.
Abstract Alternative
二条オオムギにおける裂皮粒歩合の遺伝子を解析するために、裂皮粒歩合が大きく異なる8品種・系統の間で総当たりの交雑を行い、逆交雑を除く28組合せのF2集団とその親を供試して、裂皮粒歩合の遺伝子を調べた。片面ダイアレル分析の結果、裂皮粒歩合の遺伝子にはエピスタシスが認められず、単純な相加優性モデルが適合した。全体として裂皮粒歩合の低い方が部分優性と見られ、その平均優性度は0.97と推定された。裂皮粒歩合の遺伝率は狭義で0.58、広義で0.91と推定された。28組合せのF2集団の裂皮粒歩合はいずれの組合せにおいても連続的な分離を示し、また、超越分離が認められた。F2集団の平均値と両親品種の平均値の相関は高く、雑種集団における裂皮粒歩合は遺伝子の相加的な作用によって支配されていることが示唆された。28組合せのF2集団における裂皮粒歩合の表現型分散と遺伝分散の割合から推定した広義の遺伝率は0.43~0.80(平均0.65)であった。
Keywords
Barley
Grain quality
Hull rupture
Diallel analysis
Heritability
Published Date
1994
Publication Title
岡山大学資源生物科学研究所報告
Publication Title Alternative
Bulletin of the Research Institute for Bioresources, Okayama University
Volume
volume2
Issue
issue1
Publisher
岡山大学資源生物科学研究所
Publisher Alternative
Research Institute for Bioresources, Okayama University
Start Page
79
End Page
89
ISSN
0916-930X
NCID
AN10381600
Content Type
Departmental Bulletin Paper
language
日本語
File Version
publisher
Refereed
False