Rice panicle trait regulatory gene PT2 and application thereof

A technology for regulating genes and PT2, applied in application, genetic engineering, plant gene improvement and other directions, can solve the problem of complex gene regulation network, and achieve the effect of increasing library capacity and improving quality
CN103882033AActive Publication Date: 2014-06-25HUNAN HYBRID RICE RES CENT
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HUNAN HYBRID RICE RES CENT
Publication Date
2014-06-25

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Abstract

The invention discloses a rice panicle trait regulatory gene PT2 and application thereof. A nucleotide sequence of the PT2 gene is as shown in SEQ ID NO.1, and the PT2 gene can regulate rice panicle traits such as grain shape, 1000-grain weight and panicle length. The invention further provides allelic genes pt2-J and pt2-I of the PT2 gene. The nucleotide sequences of the allelic genes are as shown in SEQ ID NO.3 and SEQ ID NO.5. The PT2 gene provided by the invention and the allelic genes thereof can be used for breeding new plant varieties such as a high-yield rice variety, or a top-grade long-grain high-grade rice variety, and can also be used for breeding high-yield top-grade novel varieties of other plants such as corns, sorghums, and the like.
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Description

Technical field

[0001] The invention belongs to the field of plant genetic engineering, and specifically relates to a rice ear trait regulating gene PT2, and also relates to the alleles of the gene and the application of the gene and its alleles in plant breeding such as rice and corn. Background technique

[0002] Rice is one of the most important food crops in the world. More than half of the world's population feed on rice as the staple food. The yield and quality of rice are related to the world's food security. The panicle traits of rice include panicle length, number of primary branches, number of secondary branches, grain shape, number of grains per panicle, etc., which have an important impact on the yield and quality of rice.

[0003] Take rice panicle traits-grain shape as an example. The grain shape includes grain length, grain width, and grain thickness. It not only directly affects the important component of rice yield-thousand-grain weight, but also affects the appear...

Claims

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