A Correlation between Gametophytic and Sporophytic Characteristics in Zea mays L
A Correlation between Gametophytic and Sporophytic Characteristics in Zea mays L
复制标题
玉米配子体与孢子体特征的相关性
DOI：
10.1126/science.171.3976.1155
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发表时间：
1971
期刊：
影响因子：
56.9
通讯作者：
D. Mulcahy
中科院分区：
文献类型：
--
作者：
D. Mulcahy
如果将通过遗传标记鉴定的玉米花粉类型的混合物施加到其他近交系的花丝上，则花粉管生长的速率通常随花粉类型而变化。这种配子体差异与孢子体差异相关-种子混合物中相对较重的种子是由来自生长较快的试管的配子受精造成的。增加的种子重量是由于由此形成的合子的更大的竞争能力。
If a mixture of types of corn pollen, identified by genetic markers, is applied to the silks of other inbred lines, the rate of pollen tube growth often varies with type of pollen. This gametophytic differential is correlated with a sporophytic differential—relatively heavier seeds in seed mixtures result from fertilization by gametes from faster growing tubes. The increased seed weight is due to greater competitive ability of the zygotes thus formed.