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

This Article Full Text (PDF) Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Matthews, B. F. Articles by Lewers, K. S. Search for Related Content PubMed Articles by Matthews, B. F. Articles by Lewers, K. S. Agricola Articles by Matthews, B. F. Articles by Lewers, K. S.

CULTIVARS

Registration of ‘MiniMax’ Soybean

USDA-ARS, Plant Sciences Institute, Soybean Genomics and Improvement Lab., 10300 Baltimore Ave, Bldg. 006, Beltsville, MD 20705

^* Corresponding author (ben.matthews{at}ars.usda.gov).

‘MiniMax’ soybean [Glycine max (L.) Merr.] (Reg. No. CV-489, PI 643148) was developed by the USDA-ARS at Beltsville, MD. It was released on April 13, 2006 because of its small stature, early maturity date, and small seed size, to allow more plants to be grown and to mature in a smaller space than other soybean cultivars (Fig. 1 ). It is intended for researchers with limited space who desire high-density planting and as a basic laboratory model for soybean genomics, biochemical, plant disease and physiological studies.

View larger version (120K): [in this window] [in a new window]   Figure 1. Soybean cv. Jack and cv. MiniMax grown for seven weeks. Note that Jack (left) is flowering while MiniMax (right) has green pods.

MiniMax was planted in the field June first at Beltsville, MD (approx. 39° North latitude) matured in 73 to 85 d with an average plant height of 22 cm. Plants were also grown in the greenhouse in 16 h light/8 h dark for the first 16 d, then at 12 h light/12h dark to initiate flowering, which began at 23 to 27 d. The temperature was maintained between 72 and 80^o F during the day and 72 to 75^o F at night. Natural greenhouse lighting was supplemented with sodium vapor lights during winter months. Dry brown pods can be harvested at 9 to 11 wk after planting. In the greenhouse the small seed averaged about 5.1 g/100^–1 seeds and 14 seeds per plant in the summer. MiniMax has purple flowers, brown pods, gray pubescence and produces seeds with a yellow seed coat and hilum. Mature seeds of MiniMax had 42.19% protein and 12.10% oil. It is susceptible to soybean cyst nematode (Heterodera glycines) HG Type 0 (Race 3; FI 59%), HG Type 1.2.5.7 (Race 2; FI 92%), HG Type 2.5.7 (Race 5; FI 70%), and is moderately resistant to HG Type 2.5.7 (Race 1; FI 30%) (Dr. P. Rao Arelli, personal communication, 2006). The HG Type classification is based on the system proposed by Niblack et al. (2002).

MiniMax as well as the AC Colombe, T263 and Nattosan parents were characterized with a core set of 13 simple sequence repeat (SSR) loci (Table 1 ). These SSR loci were from different linkage groups and were determined to be effective in soybean DNA fingerprinting (Song et al., 1999). These 13 marker loci provide unique allelic fingerprints of even closely related soybean cultivars. The allele sizes of 13 loci genotyped in MiniMax and its parents are listed in Table 1. The allele size of each locus from MiniMax was compared with those from 402 genotypes including 35 ancestors of North American cultivars, 66 North American elite soybean cultivars, 21 Korean elite genotypes, 30 Japanese elite genotypes, 59 Chinese elite cultivars, and 170 plant introductions from China, Korea, and Japan. Allele sizes were determined on the Applied Biosystems 3730 DNA Analyzer (University Park, IL). A 220 bp allele at the Satt009 locus is unique to MiniMax and is apparently the result of a mutation. The average genetic distance of MiniMax with 402 genotypes was 0.80, and the closest distance to any other genotype was 0.50. The allelic profile of MiniMax at the 13 SSR loci was unique from all 402 genotypes in the allele size database.

Footnotes

All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Permission for printing and for reprinting the material contained herein has been obtained by the publisher.

Received for publication October 12, 2006.

References

• Cober, E., J.F. Reid, L. Pietrzak, and H. Voldeng. 2001. The Natto Story: A niche market in Japan for Canadian small-seeded soybean. Ag-Infotec 2:1–4.
• Niblack, T.L., P.R. Arelli, G.R. Noel, C.H. Opperman, J. Orf, D.P. Schmitt, J.G. Shannon, and G.L. Tylka. 2002. A revised classification scheme for genetically diverse populations of Heterodera glycines. J. Nematol. 34:279–288.
• Palmer, R.G. 1977. Soybean linkage tests. Soybean Genet. Newsl. 4:40–42.
• Palmer, R.G. 1984. Inheritance of a miniature mutant in soybean. Soybean Genet. Newsl. 11:94–97.
• Song, Q.J., C.V. Quigley, T.C. Carter, R.L. Nelson, H.R. Boerma, J. Strachan, and P.B. Cregan. 1999. A selected set of trinucleotide simple sequence repeat markers for soybean variety identification. Plant Varieties and Seeds 12:207–220.
• Zarkadas, C., H.D. Voldeng, A.R. Yu, K. Shang, and P.L. Pattison. 1997. Comparison of the protein quality of five new Northern adapted Natto soybean cultivars by amino acid analysis. J. Agric. Food Chem. 45:2013–2019.[CrossRef]

This Article Full Text (PDF) Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Matthews, B. F. Articles by Lewers, K. S. Search for Related Content PubMed Articles by Matthews, B. F. Articles by Lewers, K. S. Agricola Articles by Matthews, B. F. Articles by Lewers, K. S.