%0 Conference Paper
%A Singh, A K
%B Proceedings of an International Workshop on Cytogenetics of Arachis
%C Patancheru, Andhra Pradesh, India
%D 1985
%F icrisat:4157
%P 107-117
%T Genetic lntrogression from Compatible Wild Species into Cultivated Groundnut
%U http://oar.icrisat.org/4157/
%X The drplord wrld speoes (2n.20) compahble wrth the cultrvatcrd letraplord groundnut A hypogee8  (2n=IO). are sources of resrstance to many drseasss of groundnut  The ferfrlrty observed rn trrplod hybrrds of A hyp0g.m and erghf drplotd spocres. and the  recovery of progenres wrfh drplord to hexapkrd chromosome numbers hrve led to the rdentrlrcafron  of a raprd method for the productron of retraplord rnterspecrfrc derrvatrves T h e henaplords rarsed  from the trrplord hybrrds show rntra- and rntergenomrc parrmg rn the form 01 btvalents rndmult~vrlents.  Hexeplords and the progenres of the trrplords were backcrossed wtth A hypogaee and  produced A hypogaea-lrke dertvatrves  Autotetraplo~ds were crossed wrth A hypcqsee end some lerfrle F I progenres obtsrned  Forty-SIX 01 the 56 possrble ~nferspecrfrc crosses among erght drplord wrld specres producad  seeds Amphrplotds were esleblrshed rn 31 combrnatrons. 23 have been crossed wrth A hypogaea