Application of non-coding gene capable of controlling corn ear thickness heterosis and precursor sequence of non-coding gene

A heterosis, non-coding technology, applied in the application of non-coding genes and their precursor sequences, can solve the problems of low probability, poor predictability, and large blindness of screening excellent combinations, and achieve the improvement of ear diameter and ear size. yield effect
CN112795568AActive Publication Date: 2021-05-14HENAN AGRICULTURAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HENAN AGRICULTURAL UNIVERSITY
Publication Date
2021-05-14

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Abstract

The invention relates to the technical field of gene engineering, and particularly discloses application of a non-coding gene capable of controlling female ear thickness heterosis of corn and a precursor sequence of the non-coding gene. The non-coding gene is a zma-miR390 gene, wherein the RNA sequence of the non-coding gene is as shown in SEQ ID NO. 1, and the precursor RNA sequence of the non-coding gene is as shown in SEQ ID NO. 2. The zma-miR390 gene provided by the invention can be used for improving the female ear thickness and yield of corn, and provides help for breeding practice aiming to increase the yield of corn.
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Description

technical field

[0001] The invention relates to the technical field of genetic engineering, in particular to the application of a non-coding gene and its precursor sequence for controlling coarse heterosis of maize ears. Background technique

[0002] As one of the most important food, feed and energy crops in the world, corn plays an irreplaceable role in ensuring world food security, promoting economic development and alleviating energy crisis. Maize is a monoecious plant with different flowers. The ear development needs to go through axillary bud meristem (AM), inflorescence meristem (IM), spikelet paired meristem (SPM), spikelet meristem (SM), A series of differentiation processes such as floret meristem (FM). The number of corn ear rows (ear diameter) is mainly determined by the size of the IM. The increase of IM can provide enough space for new SPM differentiation, resulting in an increase in the number of SPMs and finally the number of ear rows. The number of grains ...

Claims

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