scholarly journals Construction of a multicontrol sterility system for a maize male-sterile line and hybrid seed production based on theZmMs7gene encoding a PHD-finger transcription factor

2017 ◽  
Vol 16 (2) ◽  
pp. 459-471 ◽  
Author(s):  
Danfeng Zhang ◽  
Suowei Wu ◽  
Xueli An ◽  
Ke Xie ◽  
Zhenying Dong ◽  
...  
Keyword(s):  
Transcription Factor ◽  
Seed Production ◽  
Hybrid Seed ◽  
Hybrid Seed Production ◽  
Male Sterile ◽  
Male Sterile Line ◽  
Phd Finger

scholarly journals Early Maturing Male Sterile Line ‘Wonye 30005’ for Hybrid Seed Production of Onion (Allium cepa L.)

2016 ◽  
Vol 48 (2) ◽  
pp. 168-172
Author(s):  
Cheol-Woo Kim ◽  
Eul-Tai Lee ◽  
In-Hu Choi ◽  
Young-Seok Jang ◽  
Sang-kyeong Bae ◽  
...  
Keyword(s):  
Seed Production ◽  
Allium Cepa ◽  
Hybrid Seed ◽  
Hybrid Seed Production ◽  
Male Sterile ◽  
Male Sterile Line ◽  
Allium Cepa L ◽  
Early Maturing

scholarly journals CHARACTERIZATION OF A MALE-STERILE SYSTEM WITH A CLOSELY LINKED SEEDLING MARKER TO FACILITATE F1 HYBRID TOMATO SEED PRODUCTION

HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1168e-1168 ◽  
Author(s):  
Edward C. Tigchelaar
Keyword(s):  
Male Sterility ◽  
Seed Production ◽  
Marker Gene ◽  
Hybrid Seed ◽  
Hybrid Seed Production ◽  
Chromosome 2 ◽  
Male Sterile ◽  
Tomato Seed ◽  
F1 Hybrid

The coupling phase linkages have been synthesized between the gene aw (without anthocyanin) and the male sterile gene ms15 (and its alleles ms26, ms47, and an Israeli source of male sterility). Less than 2 map units separate aw and ms15 on chromosome 2, providing a convenient seedling marker gene to rapidly identify male sterility for both inbred development and hybrid seed production. The seedling marker also provides a convenient marker to rapidly assess hybrid seed purity. Unique features of each of the alleles involved in male sterility and their use in inbred and hybrid development will be described.

scholarly journals First Report of Sorghum Ergot Caused by Claviceps africana in the United States

Plant Disease ◽  
1998 ◽  
Vol 82 (5) ◽  
pp. 592-592 ◽  
Author(s):  
T. Isakeit ◽  
G. N. Odvody ◽  
R. A. Shelby
Keyword(s):  
Seed Production ◽  
The United States ◽  
Grain Sorghum ◽  
Hybrid Seed ◽  
High Plains ◽  
Hybrid Seed Production ◽  
Male Sterile ◽  
Production Region ◽  
Corpus Christi ◽  
Chromatography Analysis

In March 1997, ergot was found on sorghum (Sorghum bicolor (L.) Moench) regrowth in several abandoned commercial grain sorghum fields in Cameron and Hidalgo counties in the Lower Rio Grande Valley (LRGV) of Texas. White sphacelia in florets produced honeydew containing macrospores (hyaline, oblong to oval, 10 to 25 μm × 5 to 7 μm) and microspores (hyaline, spherical, 3 μm in diameter). Macrospores germinated iteratively to form secondary conidia when placed on water agar and in situ following rain. Secondary conidia were hyaline, pyriform, with a protruding hilum, and measured 10 to 17 μm × 5 to 7 μm. High-pressure liquid chromatography analysis detected the alkaloid di-hydroergosine in sphacelia, which is unique to C. africana (1). The pathogen was also confirmed on adjacent johnsongrass (S. halepense). The spread of ergot across Texas was associated with the progressive maturation of the commercial sorghum crop as follows: LRGV (mid-May), Coastal Bend near Corpus Christi (June), Winter Garden area southwest of San Antonio (July), and the seed production region of the Texas Panhandle (mid-August). Ergot incidence ranged from a trace to 10% of the heads in (self-fertile) grain sorghum fields of the LRGV. Most heads had only a few infected florets, but a few heads had 35 to 50% of the florets infected. Only trace amounts were found in grain sorghum fields in other areas of the state. Incidence and severity of ergot were greatest in fields of male-sterile sorghums grown for forage. Ergot was generally low in primary heads of male-sterile sorghums in hybrid seed production fields but, in the absence of pollen, axillary tillers sometimes developed high levels of ergot. The major impact of sorghum ergot is expected to be in hybrid seed production fields in the High Plains of Texas. Reference: (1) D. E. Frederickson et al. Mycol. Res. 95:1101, 1991.

Sign in / Sign up

Export Citation Format

Share Document