Genetic analysis of short petiole and abnormal pulvinus in soybean

• Published in: Euphytica 1998-01, Vol.102 (3), p.329-333
• Main Authors: You, M.G. (Nanjing Agricultural Univ. (China). Soybean Research Inst.), Zhao, T.J, Gai, J.Y, Yen, Y
• Format: Article
• Language: English
• Subjects: Agronomy. Soil science and plant productions; Biological and medical sciences; Fundamental and applied biological sciences. Psychology; GENETIC INHERITANCE; Genetics and breeding of economic plants; Genomics; Genotypes; GLYCINE MAX; HEREDITE; HERENCIA GENETICA; PECIOLO; PETIOLE; PETIOLES; Soybeans; Varietal selection. Specialized plant breeding, plant breeding aims; Yield, quality, earliness, varia
• ISSN: 0014-2336; 1573-5060
• DOI: 10.1023/A:1018309320304

The short petiole trait is valuable to ideotype breeding for yield. In this study, short petiole and abnormal pulvinus of two mutant lines NJ90L-1SP and D76-1609 were genetically investigated. These two mutants were crossed with each other and with five long petiole and normal pulvinus genotypes. Genetic analysis indicated that short petiole in NJ90L-1SP was controlled by two duplicated loci of a recessive gene, lps^sub 2^, which also controls the development of abnormal pulvinus. Two duplicated loci of another recessive gene, lps^sub 1^, which also controls short petiole trait, were found in D76-1609. Our data indicated that these two recessive genes are not allelic. It is possible that these two genes may control different steps of the same physiological pathway toward the development of pulvinus and petiole in soybean.[PUBLICATION ABSTRACT]