有籽和无籽葡萄的胚珠发育

IF 1.1 4区农林科学 Q3 HORTICULTURE

Vitis Pub Date : 1970-01-01 DOI:10.5073/VITIS.1970.9.7-14

B. Barritt

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引用次数: 27

摘要

对3个无核葡萄品种Himrod、Interlaken无核葡萄和ny 15302及其种子亲本Ontario的雌性配子体和早期胚、胚乳发育进行了研究。在所有品种中，开花时功能胚囊的比例都很高。所有品种均发生受精。用Himrod观察到胚乳早熟，用N. Y. 15302观察到胚乳发育极快。无籽品种希姆罗德(Himrod)和因特拉肯(Interlaken)无籽品种的受精卵早期退化，受精卵分裂失败，胚乳退化。由于合子和胚乳发育不全，导致了希姆罗德和因特拉肯无籽品种的种子败育(窄精子)和无籽结实(窄精子)。

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Ovule development in seeded and seedless grapes

Female gametophyte and early embryo and endosperm development were examined in 3 seedless grape varieties, Himrod, Interlaken Seedless and N. Y. 15302, and in their seeded parent Ontario. A high proportion of functional embryo sacs was found at full bloom in all varieties. Fertilization occurred in all varieties. Precocious initiation of endosperm was observed with Himrod and extremely rapid development of endosperm was found with N. Y. 15302. Early degeneration of zygotes, failure of the zygotes to divide, and endosperm degeneration were observed in the seedless varieties with smallest seed remnants, Himrod and Interlaken Seedless. Imperfect development of the zygote and endosperm resulted in seed abortion (stenospermy) and seedless fruit (stenospermocarpy) in Himrod and Interlaken Seedless varieties.

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来源期刊

Vitis 农林科学-园艺

CiteScore

1.80

自引率

0.00%

发文量

审稿时长

>36 weeks

期刊介绍： VITIS publishes original scientific papers and critical reviews concerning grapevine biology, molecular biology, breeding, plant pathology, oenology and related fields. Research with a focus on pharmacology or post-harvest technology is not suitable for publication in VITIS.