Production of Homozygous S1 Seedlings for S Gene in 'Hirado Buntan' Pummelo (Citrus grandis Osbeck) and Determination of the S Alleles (S_9 and S_10) by Pollination with the S_1 Seedlings to Citrus Cultivars
スポンサーリンク
概要
- 論文の詳細を見る
Gametophytic self-incompatibility (SI) in Citrus is known in pummelo, mandarin and many hybrid cultivars with pummelo in their pedigrees. What seems to be lacking, however, is determination of allelic variation in SI gene (S) and the genotypes of self?incompatible and semi self-incompatible cultivars. In previous studies, S genotypes of several Citrus cultivars were estimated on the basis of segregation distortion for Got-3 gene in F1 progenies between these cultivars. In this study, S1 seedlings were produced from self? pollinated ‘Hirado Buntan’ pummelo, and homozygous S1 seedlings for the S gene were determined by the pollination with ‘Hirado Buntan’. Then, the homozygous S1 seedlings were pollinated with the homozygous S1 seedling (SaSa) each other and classified them into two genotype groups of SaSa and SbSb. The ten cultivars, whose S genotypes were predicted on the basis of joint segregation analysis with Got-3 gene in their progenies, were pollinated with the homozygous S1 seedlings (SaSa or SbSb). Pollen tube behavior in the style of the ten Citrus cultivars after pollination with the Sa or Sb pollen led to the conclusion that ‘Hirado Buntan’ has S9 and S10 alleles. Furthermore, pollen tube arrest in the style of self-compatible ‘Kabusu’ sour orange pollinated with S9 pollen suggested that the genotype of ‘Kabusu’ is SfS9. Inscrutably, neither S9 nor S10 alleles were found in a group belonging to the Hirado pummelo line, which started from seeds sown by the 11th feudal load Terasu Matsura of the domain of Hirado. This fact supported the two origins of Hirado pummelo plants described in the literature, and indicated the association of multiple seed and/or pollen parents with different S alleles to the original seed production.
- 2010-10-29
論文 | ランダム
- 都市ガス業界、原料費高騰分転嫁困難も業績回復には追い風
- 巻頭インタビュー トップの目線 社会の要望「資源化」追い風に--地域業者とネットワーク構築 石坂孝光氏/有価物回収協業組合石坂グループ代表理事
- 躍動する台湾の先進企業群--「ECFA」追い風に中国戦略、日欧との連携も (特集 台湾経済と九州)
- 東北コーナー 国家戦略を追い風に発展を目指す吉林省
- 栽培条件の違いが特性の異なるビール大麦の収量および品質に及ぼす影響