Details for: PI 659454, Sorghum bicolor (L.) Moench, Tx3361

Summary Data

Taxonomy:

Sorghum bicolor (L.) Moench

Top Name:

Tx3361

Origin:

Developed – Texas, United States

Maintained:

National Laboratory for Genetic Resources Preservation

Received by NPGS:

14 May 2010

Improvement Status:

Breeding material

Reproductive Uniformity:

Pureline

Form Received:

Seed

Life Form:

Annual

Life Cycle:

Annual

Availability

This accession is not available. Contact site for status.

National Laboratory for Genetic Resources Preservation

There are no images for this accession.

Core Passport Data

Taxonomy:

Sorghum bicolor (L.) Moench

Top Name:

Tx3361

Origin:

Developed – Texas, United States

Maintained:

National Laboratory for Genetic Resources Preservation

Received by NPGS:

14 May 2010

Improvement Status:

Breeding material

Reproductive Uniformity:

Pureline

Form Received:

Seed

Life Form:

Annual

Life Cycle:

Annual

Source History

Developed

2010.
Texas, United States

Developer(s):

Accession Names and Identifiers

Tx3361

Type: Developer identifier

Narrative

The Iap (Inhibition of Alien Pollen) locus is one cause of reproductive isolation between cultivated sorghum and wild sorghum species outisde the Eu-Sorghum section. In the homozygous recessive condition, the iap iap genotype eliminates this reproductive isolation barrier and allows hybrids to be recovered between S. bicolor and wild Sorghum relatives. Tx3361 is an agronomically improved S. bicolor germplasm possessing the iap iap genotype and segragating at the Ms3 genetic male sterility locus to facilitate hybridization. Tx3361 was selected, evaluated and increased in the TX Agrilife Res. sorghum breeding program at Collegte Station, TX. The germplasm was developed from a cross between genetic male-sterile BTx623, an unreleased derivative of BTx623 containing the ms3 allele for genetic male-sterility, and NR481, an unreleased line homozygous for the iap allele . The hybrid was backcrossed once to the BTx623ms3 parent. BC1F2 progeny were grown in a greenhouse and tested for maize pollen tube growth to identify iap iap genotypes. Selected iap iap individuals were self pollinated and evaluated for lodging, height, awns, and segragation of the ms3 allele. Selected male-fertile and sterile plants (BC1F3) within ms3 segragating rows were sib-mated. Individual sib crosses were evaluated for stable backcross segragation of ms3, lodging, height, maturity, and the iap iap genotype. Selected sib crosses were bulk sib-mated between male-sterile and fertile plants to produce breeder's seed of Tx3361. Maintains sterility in the A1 cytoplasmic male sterility system. Genetically a three dwarf with height similar to most grain sorghum parental lines. Is 10-12 d earlier than BTx623 in all environments and lodging in Tx3361 and BTx623 were similar. Penetrance of the iap iap genotype, based on maize pollen tube growth to the base of the style is environmentally influenced.

Sorghum bicolor (L.) Moench

Genus:

Sorghum

Section:

Sorghum

Family:

Poaceae (alt. Gramineae)

Subfamily:

Panicoideae

Tribe:

Andropogoneae

Subtribe:

Sorghinae

Nomen number:

35092

Place of publication:

Methodus 207. 1794

Comment:

for weedy sorghums see Sorghum bicolor nothosubsp. drummondii

Verified:

03/05/2008 by ARS Systematic Botanists.

Other conspecific taxa

Sorghum bicolor (L.) Moench nothosubsp. drummondii (Steud.) de Wet ex Davidse (88 active accession[s])
Sorghum bicolor (L.) Moench subsp. bicolor (45835 active accession[s])
Sorghum bicolor (L.) Moench subsp. verticilliflorum (Steud.) de Wet ex Wiersema & J. Dahlb. (61 active accession[s])

Autonyms (not in current use), synonyms and invalid designations

Common names

Language	Name	note	seq	Citation
English	great millet		1	Botanical Society of the British Isles. BSBI taxon database (on-line resource).
English	Rhodesian Sudan grass		1	Integrated Botanical Information System (IBIS). Australian plant common name database (on-line resource).
English	sorghum		1	Wiersema, J. H. & B. León. 1999. World economic plants: a standard reference CRC Press, Boca Raton, FL.
English (Canada)	sorghum	Agriculture & Agri-Food Canada official name	2	Darbyshire, S. J. 2003. Inventory of Canadian Agricultural Weeds Agriculture and Agri-Food Canada. 48-49.
French (Canada)	sorgho commun	Agriculture & Agroalimentaire Canada nom officiel	2	Darbyshire, S. J. 2003. Inventory of Canadian Agricultural Weeds Agriculture and Agri-Food Canada. 48-49.

Annotations