Premium
Registration of TAM RKRNR‐9 and TAM RKRNR‐12 Germplasm Lines of Upland Cotton Resistant to Reniform and Root‐Knot Nematodes
Author(s) -
Starr J. L.,
Smith C. W.,
Ripple K.,
Zhou E.,
Nichols R. L.,
Faske T. R.
Publication year - 2011
Publication title -
journal of plant registrations
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.316
H-Index - 21
eISSN - 1940-3496
pISSN - 1936-5209
DOI - 10.3198/jpr2011.01.0048crg
Subject(s) - rotylenchulus reniformis , biology , meloidogyne incognita , germplasm , terra incognita , nematode , root knot nematode , agronomy , knot (papermaking) , horticulture , ecology , chemical engineering , engineering
TAM RKRNR‐9 (Reg. No. GP‐941; PI 662039) and TAM RKRNR‐12 (Reg. No. CP‐942; PI 662040) with resistance to the reniform ( Rotylenchulus reniformis Linford & Oliveira) and root‐knot [ Meloidogyne incognita (Kofoid & White) Chitwood] nematodes are noncommercial breeding lines of upland cotton ( Gossypium hirsutum L.) released by Texas AgriLife Research in 2010. Both lines were derived from the cross of the root‐knot nematode resistant line M‐315 RNR ( G. hirsutum L.), and the reniform nematode resistant line Tx110 ( G. barbadense L.). The resistance to reniform is moderate, suppressing nematode reproduction by 40–70%. The resistance to root‐knot nematodes is high, similar to that of the M‐315 RNR parent, with more than 90% suppression of reproduction and low amounts of root galling. This unique combination of resistance to the reniform and root‐knot nematodes makes these breeding lines valuable for cotton‐breeding programs.