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- INOMATA NOBUMICHI
- Faculty of Agriculture, Kyoto University
書誌事項
- タイトル別名
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- DEVELOPMENT OF ENDOSPERM AND EMBRYO IN RECIPROCAL CROSSES BETWEEN 2<i>X</i> AND 4<i>X</i> IN <i>RAPHANUS SATIVUS</i>
- ダイコン ニ オケル 2バイタイ ト ヨンバイタイ ト ノ セイ ギャクコウザツ デ ノ ハイ ト ハイニュウ ノ ハッタツ ニ ツイテ エイブン
この論文をさがす
説明
Embryological studies were made to clarify developmental processes, leading to seed collapse in crosses between diploid Raphanus sativus (2n=18) and its autotetraploid (2n=36).<br>Hybrid embryos of reciprocal crosses appeared to develop normally in the early developmental stage, but in the cross, 2x×4x, they failed in general to develop beyond the globular stage because of degeneration of the endosperm. In the reciprocal cross, 4x×2x, viable hybrid seeds were produced, though their sizes were only one-fourth those of their parents.<br>In the 2x×4x cross, cell wall formation in the endosperm was inhibited, and abnormal vacuolization of endosperm occurred in all ovules, resulting in various nuclear irregularities and degeneration of ovules.<br>In the 4x×2x cross, the amount of endosperm was smaller but cell wall formation took place in it earlier than in parental endosperm. Development of the embryo was faster than in the parents.<br>A possible cause for the failure of viable seed formation was discussed in relation to the various abnormalities observed in various developmental stages.
収録刊行物
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- 遺伝学雑誌
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遺伝学雑誌 45 (3), 173-182, 1970
日本遺伝学会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390282680420886912
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- NII論文ID
- 130000059246
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- NII書誌ID
- AA00690924
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- ISSN
- 18805787
- 0021504X
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- NDL書誌ID
- 8109771
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可