SSR molecular marker associated with cotton short stalk and high lint percentage

Abstract

The invention discloses a SSR molecular marker associated with cotton short stalk and high lint percentage. The present invention provides a chromosome fragment derived from abnormal cotton, which isthe fragment located on the chromosome 11 of the abnormal cotton from the SSR molecular marker NAU2877 to the SSR molecular marker JAAS4311; a nucleotide sequence of the SSR molecular marker NAU2877 is shown as SEQ ID No. 1; and a nucleotide sequence of the SSR molecular marker JAAS4311 is shown as SEQ ID No. 2. The chromosome fragment provided by the invention has important application value in cotton breeding of short stalk and high lint percentage, and the developed SSR molecular marker provides a molecular basis for cultivating the cotton variety of short stalk and high lint percentage which can be applied for production.

Description

Technical field [0001] The present invention relates to the field of cotton breeding, in particular to SSR molecular markers related to cotton short stem and high lint content. Background technique [0002] Cotton is an important economic crop and raw material for the textile industry in my country, and it has an irreplaceable position in the national economy. In recent years, with changes in the domestic and international economic situation and the adjustment of national industrial policies, the area of ​​cotton planting has fallen sharply in the Yangtze and Yellow River basins. The main reasons are as follows: planting cotton is more time-consuming and labor-intensive than other field crops, and production costs increase; the process of urbanization and industrialization is accelerated, a large amount of labor is transferred to cities, and there is a shortage of rural labor. Therefore, improving the level of mechanization and large-scale production is the only way for the deve...

AI Technical Summary

Problems solved by technology

However, the use of a large amount of chemical reagents such as benzedramine is not only time-consuming and labor-intensive, but also causes a certain degree of pollution to the environment.

[0003] The number of bolls per plant, boll weight and cotton yield are the three major factors that constitute the cotton yield, while the cotton fiber yield is an important factor that has a significant negative correlation with fiber quality, so the traditional breeding methods are used to simultaneously improve Cotton Fiber Quality and Improving Cotton Yield Becomes More Difficult

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