Genome-wide Association Analysis of Tassel Length in Maize

doi:10.7668/hbnxb.2017.05.006

Abstract

Abstract: In order to explain the genetic basis of tassel length and locate the related QTLs,289 maize inbred lines were used as the experimental material,the correlation between the tassel length of maize and plant height,ear height,tassel stem length were measured and analyzed under natural conditions,and genome association analysis was also applied to initially map the length of tassel. The results showed that tassel length and the three agronomic traits were significantly or extremely significantly correlated,therein,tassel length had the most significant correlation with tassel stem length,and the highest correlation coefficient has reached 0.717.At the same time,a total of 13 marker sites correlated with tassel length were identified and they were located on Bin1.05,Bin7.02,Bin8.03 and Bin10.05. Genome-wide association analysis was used to explore the long locus and candidate genes,which had an important significance to reveal the genetic mechanism of tassel and accelerate the process of maize breeding.

Key words: Tassel length, Correlation analysis, Genome-wide association analysis

CLC Number:

Q78
S513.03

PAN Shunxiang, ZHAO Meiai, PEI Yuhe, GUO Xinmei, SONG Xiyun. Genome-wide Association Analysis of Tassel Length in Maize[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2017, 32(5): 31-36. doi: 10.7668/hbnxb.2017.05.006.

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