Wheat proline-rich protein Tazmh122, coding gene and application thereof

Abstract

The invention discloses a wheat proline-rich protein Tazmh122, a coding gene and application thereof. The wheat proline-rich protein Tazmh122 has an amino acid sequence shown as SEQ ID NO:2. The nucleotide sequence of the gene coding the wheat proline-rich protein Tazmh122 is shown as SEQ ID NO:1. The invention provides the new wheat proline-rich protein Tazmh122 and its coding gene. By a genetic engineering method, the wheat proline-rich protein Tazmh122 coding gene provided by the invention is transferred into wheat to improve the thousand kernel weight of wheat. The gene is the endogenous gene of the grain crop wheat itself, therefore, over-expression of the gene has no influence to the food safety of plants, and the gene can be applied in crop breeding.

Description

technical field

[0001] The invention belongs to the field of genetic engineering and relates to a wheat proline-rich protein Tazmh122, its coding gene and application. Background technique

[0002] Wheat is one of the most important food crops in the world. It provides more than 17% of the total calories needed by humans (Khush et al. 2003), and feeds about 40% of the global population (Gupta et al. 2008). Continuously increasing wheat yield is the most basic goal of wheat breeding worldwide.

[0003] Proline‐rich proteins (PRPs) represent a class of structural proteins rich in proline (Pro‐) and hydroxyproline (Hyp‐), which are found in dicotyledonous plants such as soybean, carrot and alfalfa and Widely present in monocots such as corn and wheat, studies have shown that they are expressed in many plants and participate in different aspects of plant development. For example, seed development, pod formation, early nodulation, etc. The expression of PRPs genes is also damage...

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