Molecular marker and application closely related to grain weight and silique length of oilseed rape

Abstract

The invention relates to the field of oilseed rape breeding and molecular biology, in particular to a molecular marker and application closely related to the grain weight and silique length of oilseedrape. The molecular marker closely related to the grain weight and silique length of the oilseed rape is characterized by the molecular marker to the molecular marker of gene BnaA.ARF18a, and a nucleotide sequence is shown in SEQ ID No.1. The molecular marker solves the problem that the grain weight and the silique length in a conventional breeding method can be only identified later, so that thebreeding period is long, the breeding is easily affected by the environment, and the selection efficiency is low, the efficiency of the oilseed rape breeding is improved, the grain weight and siliquelength of different breeds of oilseed rape single plants can be quickly and reliably identified in the seedling stage of the oilseed rape, the breeding efficiency of the oilseed rape is improved, andthe breeding cycle of the oilseed rape is greatly shortened.

Description

technical field [0001] The invention relates to the fields of rapeseed breeding and molecular biology, in particular to a molecular marker closely related to rapeseed grain weight and silique length and its application. Background technique [0002] Brassica napus is an important oil crop in my country. It not only provides edible oil for human beings, but also provides feed rich in protein. Therefore, increasing the yield of rapeseed has always been the primary goal of breeders. Seed size (weight) and silique length are important components of rapeseed yield. Hundreds of QTLs for grain weight and silique length have been found in rapeseed in the past two decades, but the genetic and molecular regulatory networks of these QTLs are still unclear. Not sure. [0003] Seed size / weight is considered to be one of the most important traits. As the product of sexual reproduction in higher plants, seeds are not only the most important form of plant reproduction, but also the most im...

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Problems solved by technology

[0007] In order to solve the above problems, the present invention provides a molecular marker closely related to rapeseed grain weight and silique length, which solves the problem that grain weight and silique length in conventional breeding methods can only be identified later, making the breeding cycle long, Susceptible to environmental influences and low selection efficiency, improving the efficiency of rapeseed breeding

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