HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in ISI Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via ISI Web of Science (1) Citing Articles via Google Scholar Google Scholar Articles by Siles, M.M. Articles by Frickel, G.E. Search for Related Content PubMed Articles by Siles, M.M. Articles by Frickel, G.E. Agricola Articles by Siles, M.M. Articles by Frickel, G.E.

REGISTRATIONS OF GENETIC STOCK

Registration of Five Genetic Marker Stocks of Foxtail Millet

^a Dep. of Agronomy, University of Nebraska-Lincoln, Lincoln, NE 68583-0915
^b Panhandle Research and Extension Center, University of Nebraska, Scottsbluff, NE 69361-4939

* Corresponding author (dbaltensperger1{at}unl.edu)

Five foxtail millet [Setaria italica (L.) Beauv.] lines, N-Si-1 (Reg. no. GS-2, PI 614814), N-Si-2 (Reg. no. GS-3, PI 614815), N-Si-3 (Reg. no. GS-4, PI 614816), N-Si-4 (Reg. no. GS-5, PI 614817), and N-Si-5 (Reg. no. GS-6, PI 614818) developed by the University of Nebraska Agricultural Experiment Station and released in June 1999. These lines were identified as sources of three pigment (plant color, anther color, and seed coat color) and three morphological (bristle development, earhead density, and seed shape) genetic markers in half diallel crosses among seven parental lines at the University of Nebraska-Lincoln in 1994–1995 (Baltensperger, 1996). These materials were selections from PI 458628, PI 531445, PI 473598, NESE2, and PI 464233, respectively, that matured in western Nebraska, showed potential for resistance to wheat streak mosaic virus, and had above average yield potential in nurseries grown in the Nebraska Panhandle 1991–1994.

Plant pigmentation starts at the seedling stage, 3 to 5 d after emergence, on the first leaf sheaths and progresses upward on the nodes, midribs, leaf blades, internodes, peduncle, and bristles. The pigmentation is either purple or green and is conditioned by a single factor, with purple (P) dominant over green (p) (Table 1). N-Si-2 and N-Si-4 develop purple pigment similar to ‘Red Siberian’ and ‘Golden German’ (Baltensperger, 1996). N-Si-1, N-Si-3, and N-Si-5 are green throughout the plant, and when crossed to N-Si-2 and N-Si-4 produce purple F₁ plants and F₂ progenies that segregate in a 3 purple to 1 green ratio.

Seed coat color varies from light buff to brick red (dark-brown red) and is proposed to be under the control of three factors, L, R, and I (Baltensperger, 1996) (Table 1). N-Si-4 and N-Si-5 develop light-buff seeds, N-Si-1 and N-Si-3 have cinnamon-buff seed coat, and N-Si-2 produces brick-red seeds, much darker than those of Red Siberian. N-Si-4 and N-Si-5 (LLrrii) mated with N-Si-1 and N-Si-3 produce light-buff F₁ seed and 1 cinnamon buff to 3 light-buff ratio in the F₂ generation. N-Si-1 and N-Si-3, N-Si-4, and N-Si-5 crossed to N-Si-2, Red Siberian, or Golden German produce golden-buff seeds, similar to those of Golden German. In the F₂ generation, the segregation of these crosses is quite complex (Siles, 1997).

Bristle development can be classified into long, medium, and short types and is controlled by a single factor (L) with additive effects (Baltensperger, 1996) (Table 1). N-Si-1 and N-Si-4 develop short bristles (<2.5 mm in length) and N-Si-2, N-Si-3, and N-Si-5 develop long bristles (5 mm) similar to those of Red Siberian and Golden German. N-Si-1 and N-Si-4 (L₂L₂) mated to N-Si-2, N-Si-3, N-Si-5, Red Siberian, or Golden German (L₁L₁) produce F₁ progeny with medium bristles and F₂ progenies segregating in a 1 long to 2 medium to 1 short ratio.

Earhead type (dense and lax) is proposed to be conditioned by two factors (A and B) with duplicate effects (Table 1). The presence of at least one dominant allele of either gene is essential for the expression of dense earhead type. N-Si-1, N-Si-2, N-Si-3, and N-Si-5, develop dense earheads similar to Red Siberian and Golden German; however, the spikes of N-Si-1 and N-Si-2 are relatively more compact than those of N-Si-3 and N-Si-5. The spike of N-Si-4 is lax. When N-Si-4 is crossed to N-Si-1 or N-Si-5 and Golden German, F₁ progeny have dense head type, and the F₂ progenies segregate in a 3 dense to 1 lax ratio. N-Si-2, N-Si-3, and Red Siberian mated to N-Si-4 produce dense F₁ progenies and segregate in a 15 dense to 1 lax ratio in the F₂ generation.

Seed shape can be explained on the basis of two factors (A and B) with additive effects (Baltensperger, 1996) (Table 1). N-Si-1 and N-Si-4 produce round seeds, while N-Si-2, N-Si-3, and N-Si-5 develop elliptical seeds, similar to Red Siberian. N-Si-1 and N-Si-4 crossed to N-Si-2, N-Si-3, and N-Si-5 or Red Siberian produce F₁ progenies with medium seed shape, similar to Golden German. The segregation patterns in the F₂ generation of these crosses fit of 5 elliptical to 6 medium to 5 round ratio. N-Si-1 and N-Si-4 in crosses with Golden German produce round F₁ seeds, resembling the parental round seeds. In the F₂ generation, these crosses segregate in a 1 medium to 3 round ratio. In crosses between Golden German and N-Si-2, N-Si-3, N-Si-5, or Red Siberian, the F₁ progenies develop elliptical seeds and the F₂ progenies segregate in a 3 elliptical to 1 medium ratio (Siles, 1997).

Requests for seed should be made to the Panhandle Research and Extension Center, 4502 Ave. I, Scottsbluff, NE 69361. Seed of each line will be made available in 100 seed packets.

NOTES

This manuscript has been assigned Journal Series No. 13109, Agricultural Research Division, University of Nebraska. Registration by CSSA.

Accepted for publication April 30, 2001.

REFERENCES

• Baltensperger, D.D. 1996. Foxtail and proso millet. p. 182–190. In Jules Janick (ed.) Progress in New crops. Purdue University, West Lafayette, IN.
• Siles, M.M. 1997. Inheritance of qualitative and quantitative traits in foxtail millet [Setaria italica (L.) Beauv.]. Ph.D. diss., University of Nebraska, Lincoln.

This article has been cited by other articles:

				M. M. Siles, W. K. Russell, D. D. Baltensperger, L. A. Nelson, B. Johnson, L. D. Van Vleck, S. G. Jensen, and G. Hein Heterosis for Grain Yield and Other Agronomic Traits in Foxtail Millet Crop Sci., November 1, 2004; 44(6): 1960 - 1965. [Abstract] [Full Text] [PDF]

This Article Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in ISI Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via ISI Web of Science (1) Citing Articles via Google Scholar Google Scholar Articles by Siles, M.M. Articles by Frickel, G.E. Search for Related Content PubMed Articles by Siles, M.M. Articles by Frickel, G.E. Agricola Articles by Siles, M.M. Articles by Frickel, G.E.