Maize molecular marker and application thereof to detection of relevant characters of blossoming period of maize

Abstract

The invention discloses a maize molecular marker and application thereof to detection of relevant characters of the blossoming period of maize. The maize molecular marker is (A1) or (A2) or (A3), wherein (A1) is a DNA fragment expressed as the sites 42-401 in a sequence 1 of a sequence table; (A2) is a DNA fragment obtained by substituting and / or deleting and / or adding one or several nucleotides of the DNA fragment of (A1); the homoousia between the DNA fragment of (A2) and the nucleotide sequence defined by (A1) is 90% or is greater than 90%; (A3) comprises the DNA fragment of the (A1) or (A2). Experiments prove that the blossoming period, the plant height and the leaf number of the maize with two chromosomes which contain the DNA fragment expressed as the sites 42-401 in the sequence 1 of the sequence table are obviously less than that of the maize with two chromosomes which do not contain the DNA fragment expressed as the sites 42-401 in the sequence 1 of the sequence table, so thatthe experiments show that the maize molecular marker can be used for identifying the blossoming period, the plant height and the leaf number of the maize.

Description

technical field [0001] The invention relates to the field of biotechnology, a molecular marker of maize and its application in detecting traits related to the flowering period of maize. Background technique [0002] Flowering is an important process in the transition of plants from vegetative to reproductive growth. When the plant grows and develops to a certain period, under the appropriate light, temperature, water and nutrient conditions, the florigen signal produced by the plant leaves is transported to the shoot apical meristem through the vascular bundle, and induces the expression of related flower-forming genes, and then differentiates. The flower primordium develops further to form floral organs. Flowering period is one of the important agronomic traits of crops. The length of flowering period determines the length of crop growth period, and to a certain extent, restricts the regional and seasonal adaptability of crops. Plant height and leaf number, as the related...

AI Technical Summary

Problems solved by technology

[0004] Although a large number of molecular markers have been developed based on the maize genome, the development of maize molecular markers has not yet reached saturation

Images