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

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Jan, C. C. Search for Related Content PubMed Articles by Jan, C. C. Agricola Articles by Jan, C. C.

Inheritance and Allelism of Mitomycin C- and Streptomycin-Induced Recessive Genes for Male Sterility in Cultivated Sunflower

USDA-ARS, Fargo, ND 58105

^* Corresponding author.

Nuclear male sterility (NMS) conditioned by recessive genes provides a useful tool for sunflower (Helianthus annuus L.) breeding and genetics programs. The objectives of this study were to evaluate seven induced NMS mutants derived from inbred line HA 89 and two lines, B11A3 and P21, for their mode of inheritance, allelic relationships, and agronomic characteristics. Self-pollinated F₂ progenies from heterozygous F₁ male-fertile (MF) plants and BC₁F₁ progenies from crossing male-sterile (MS) with F₁ heterozygous MF plants segregated in ratios of three MF to one MS and one MF to one MS, respectively, indicating single recessive gene control of male sterility. Half-diallel crosses of MS with heterozygous F, MF plants indicated that the seven NMS mutant lines represented mutations at four loci that differ from that of P21 or B11A3. Male-fertile segregates had normal pollen production, as that of HA 89, and MS segregates lacked anther extrusion and pollen production in both field and greenhouse evaluations. B11A3 had a few partially fertile florets at the center of the heads in summer greenhouse plantings, perhaps due to high temperature. The shorter plant height and associated female sterility in NMS 747 (ms8) make it less useful. B11A3 (mslO) and P21 (msll) are agronomically less desirable because of their taller height and lower self-compatibility. NMS 360 (ms9), 552 (ms7), and 872 (ms6), representing three of the four mutant genes, performed similarly to agronomically adapted HA 89, were completely male-sterile, and should be considered for use in future genetics and breeding programs as replacements for B11A3 and P21.

Received for publication February 11, 1991.

This article has been cited by other articles:

				B. Perez-Vich, L. Velasco, J. Munoz-Ruz, and J. M. Fernandez-Martinez Inheritance of High Stearic Acid Content in the Sunflower Mutant CAS-14 Crop Sci., December 2, 2005; 46(1): 22 - 29. [Abstract] [Full Text] [PDF]

				B. Perez-Vich, S. T. Berry, L. Velasco, J. M. Fernandez-Martinez, S. Gandhi, C. Freeman, A. Heesacker, S. J. Knapp, and A. J. Leon Molecular Mapping of Nuclear Male Sterility Genes in Sunflower Crop Sci., August 1, 2005; 45(5): 1851 - 1857. [Abstract] [Full Text] [PDF]