Molecular marker closely linked to leaf angle gene of paddy, detection method and application

Abstract

The application discloses a molecular marker closely linked to a leaf angle gene of paddy, a detection method and application. The molecular marker closely linked to the leaf angle gene of the paddy, disclosed by the application, comprises a sequence represented by SEQ ID No. 1 and is closely linked to a leaf angle compact type gene of the paddy. According to the molecular marker closely linked to the leaf angle gene of the paddy, disclosed by the application, a genomic DNA sequence is related to the leaf angle compact type gene, so that the establishing of a paddy-molecular-marker-assisting breeding system is facilitated; and A genetic close-linked distance between the molecular marker and the leaf angle compact type gene is 2.1cM. The molecular marker disclosed by the application and detection primers thereof can be used for typing leaf angle compact type genes of the paddy, and thus, a molecular-assisting technical support is provided for early identifying and screening breeding of leaf angle compact types of the paddy; and the molecular marker can be applied to assisted breeding of the paddy in a simple, convenient, rapid and high-pass manner and has an important theoretical and practical guiding significance in accelerating a genetic breeding and improving progress of paddy varieties.

Description

technical field [0001] This application relates to the field of millet gene molecular markers, in particular to a molecular marker closely linked with the millet leaf angle gene and its detection method and application. Background technique [0002] Millet is an important food crop originated in my country, and it is also a characteristic drought-resistant crop; the seed germination only needs 26% of its weight in water, while the seed germination of sorghum, wheat and corn requires 40%, 45% and 48% of its weight respectively. moisture. At the same time, millet has higher tolerance to low soil fertility. Millet is an environment-friendly C4 crop and a diploid self-pollinated crop with a genome of about 470M, which is very suitable as a genome research object. [0003] Many crops such as wheat, rice and corn have significantly improved lodging resistance, light energy use efficiency and yield levels by breeding new varieties with ideal plant types. At present, most of the m...

AI Technical Summary

Problems solved by technology

At present, most of the millet varieties used in production are scattered plant types, which have low utilization rate of light resources, and the utilization efficiency of light energy is less than 1%.

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