27487
Mutations in GLR3 . 2 , GLR3 . 4 , or GLR3 . 2 and GLR3 . 4 caused the same and equally severe phenotype , namely , a large overproduction and aberrant placement of lateral root primordia .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
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