Morphological variation and inheritance in a pigeonpea intergeneric hybrid uri icon


  • A cross between Cajanus cajan (?) and Atylosia albicans (both 2n = 22) yielded hybrids from 7% of pollinations. The hybrids formed 11 bivalents at meiosis and showed regular disjunction. The F1 hybrids were intermediate between the parents in leaflet shape (lanceolate vs. obovate) and resembled A. albicans in 3 other traits (twining vs. erect growth habit and presence vs. absence of seed strophiole and mottled seeds). Analysis of F2 segregation data revealed that leaflet shape was controlled by a single gene with incomplete dominance, while the other traits were controlled by 2 loci each

publication date

  • 1985