Glandless GP

Name	Glandless GP
Alias	GP-969 [view all 2]
GRIN ID	PI 668121
Type	Breeding Germplasm
Species	Gossypium hirsutum
In Collection	[view all]
Description	The Glandless GP is a complex population developed from 22 parents having the homozygous recessive gl2gl2gl3gl3 genotype. This genotype produces a phenotype with no gossypol glands in the hypocotyl and cotyledons of the seed. This population had a large range of values for lint index (6.06 g; range = 3.79-8.19 g), seed index (10.39 g; range = 6.48-13.38 g), boll size (3.85 g; range = 1.57-6.99 g), micronaire (4.67 units; range = 2.7-6.1 units), and fiber strength (327.8 kN m kg-1; range = 234.4-459.9 kN m kg-1). Lint yield averaged 484 kg ha-1 (range = 136-863 kg ha-1), upper half mean fiber length averaged 25.96 mm (range = 23.11-30.73 mm), and elongation averaged 6.67% (range = 5.3-7.8%). Individuals were observed in this GP with high fiber strength up to 459.9 kN m kg-1. The `Del Cerro? parent would contribute to this as it is a high fiber strength germplasm (as good as Pima cultivars available at that time) developed from New Mexico Acalas in the 1980s. No correlation was detected between lint yield and fiber strength or fiber length. Seed index was positively correlated with fiber strength (r = 0.558) and fiber length (r = 0.270). Elongation was positively correlated with lint index (r = 0.538), seed index (r = 0.406), boll size (r = 0.476), lint yield (r = 0.604), micronaire (r = 0.683), and fiber strength (r = 0.396).
Origin Country	United States
Origin Detail	United States, Texas
Pedigree	22 homozygous recessive gl2gl2gl3gl3 parents were hybridized. The parents of this population came from USDA-ARS, Texas A&M Univ., and Rogers Company breeding programs. Each cross was advanced to the F3 without selection. In the F3, pollen was collected from each cross and bulked to pollinate each plant. Random mating continued for nine total cycles using the bulk pollen method.
Maternal Parent	N/A
Paternal Parent	N/A
Maternal Parent of	N/A
Paternal Parent of	N/A
Phenotypic Data	N/A
SSR Genotype Data	[view all 104]
SNP Genotype Data	N/A
Map	N/A
DNA Library	N/A
Sequence	N/A
Comments	N/A
Reference	Hinze L, Kohel RJ, Campbell T, Percy RG. Registration of Four Diverse Random‐Mated Cotton Germplasm Populations. Journal of Plant Registrations. 2014 Jan 1, 8(1):57-62.

Synonym
GP-969
PI 668121

Year	Publication
2013	Hinze L, Kohel RJ, Campbell T, Percy RG. Registration of Four Diverse Random‐Mated Cotton Germplasm Populations. Journal of Plant Registrations. 2014 Jan 1, 8(1):57-62.

Database	Accession
GRIN_Regist	GP-969
GRIN	PI 668121