scholarly journals Microsatellites markers associated with resistance to flower bud thrips in a cowpea F2 population derived from genotypes TVU-123 and WC36

2018 ◽  
Vol 17 (25) ◽  
pp. 767-778
Author(s):  
Agbahoungba Symphorien ◽  
Karungi Jeninah ◽  
Sadik Kassim ◽  
Gibson Paul ◽  
Edema Richard ◽  
...  
Keyword(s):  
Flower Bud ◽  
Microsatellites Markers ◽  
F2 Population

scholarly journals Analysis and Mapping of Gene Families Encoding β-1,3-Glucanases of Soybean

Genetics ◽  
1999 ◽  
Vol 153 (1) ◽  
pp. 445-452
Author(s):  
Wei Jin ◽  
Harry T Horner ◽  
Reid G Palmer ◽  
Randy C Shoemaker
Keyword(s):  
Gene Families ◽  
Mrna Levels ◽  
Linkage Groups ◽  
Flower Bud ◽  
Cross Hybridization ◽  
Coding Regions ◽  
F2 Population ◽  
Young Leaves ◽  
Glycine Max L ◽  
Stem Leaf

Abstract Oligonucleotide primers designed for conserved sequences from coding regions of β-1,3-glucanase genes from different species were used to amplify related sequences from soybean [Glycine max (L.) Merr.]. Sequencing and cross-hybridization of amplification products indicated that at least 12 classes of β-1,3-glucanase genes exist in the soybean. Members of classes mapped to 34 loci on five different linkage groups using an F2 population of 56 individuals. β-1,3-Glucanase genes are clustered onto regions of five linkage groups. Data suggest that more closely related genes are clustered together on one linkage group or on duplicated regions of linkage groups. Northern blot analyses performed on total RNA from root, stem, leaf, pod, flower bud, and hypocotyl using DNA probes for the different classes of β-1,3-glucanase genes revealed that the mRNA levels of all classes were low in young leaves. SGlu2, SGlu4, SGlu7, and SGlu12 mRNA were highly accumulated in young roots and hypocotyls. SGlu7 mRNA also accumulated in pods and flower buds.

scholarly journals Identification of Candidate Genes Involved in Curd Riceyness in Cauliflower

2020 ◽  
Vol 21 (6) ◽  
pp. 1999
Author(s):  
Zhenqing Zhao ◽  
Xiaoguang Sheng ◽  
Huifang Yu ◽  
Jiansheng Wang ◽  
Yusen Shen ◽  
...  
Keyword(s):  
Morphological Difference ◽  
Orthologous Gene ◽  
Target Sequence ◽  
Rna Seq ◽  
Flower Bud ◽  
Function Annotation ◽  
Breeding Lines ◽  
F2 Population ◽  
Candidate Loci ◽  
Precocious Development

“Riceyness” refers to the precocious development of flower bud initials over the curd surface of cauliflower, and it is regarded as undesirable for the market. The present study aimed to identify the candidate loci and genes responsible for the morphological difference in riceyness between a pair of cauliflower sister lines. Genetic analysis revealed that riceyness is controlled by a single dominant locus. An F2 population derived from the cross between these sister lines was used to construct “riceyness” and “non-riceyness” bulks, and then it was subjected to BSA-seq. On the basis of the results of Δ(SNP-index) analysis, a 4.0 Mb candidate region including 22 putative SNPs was mapped on chromosome C04. Combining the RNA-seq, gene function annotation, and target sequence analysis among two parents and other breeding lines, an orthologous gene of the Arabidopsis gene SOC1, Bo4g024850 was presumed as the candidate gene, and an upstream SNP likely resulted in riceyness phenotype via influencing the expression levels of Bo4g024850. These results are helpful to understand the genetic mechanism regulating riceyness, and to facilitate the molecular improvement on cauliflower curds.

The influence of sampling from different canopy positions on the evaluation of flower bud anomalies and dormancy in apricot (Prunus armeniacaL.)

Fruits ◽  
2003 ◽  
Vol 58 (2) ◽  
pp. 117-126 ◽  
Author(s):  
Raffaella Viti ◽  
Susanna Bartolini ◽  
Rolando Guerriero
Keyword(s):  
Flower Bud

Blossom Thinning in Pome and Stone Fruit

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 553b-553
Author(s):  
Esmaeil Fallahi
Keyword(s):  
Fruit Size ◽  
Naphthalene Acetic Acid ◽  
Full Bloom ◽  
Flower Bud ◽  
Hydrogen Cyanamide ◽  
Ammonium Thiosulfate ◽  
The Past ◽  
Apple Cultivars ◽  
Ortho Cresol ◽  
Bud Initiation

Early thinning of apples is important because of its impact on fruit size and next season's flower bud initiation. In the past, apple cultivars were often sprayed with the blossom thinner sodium dinitro-ortho-cresol(Elgetol) during full bloom, followed by a post-bloom application of a fruit thinner such as carbaryl with or without naphthalene acetic acid (NAA). Elgetol was removed from the market in 1989 because of the high cost of re-registration. Full-bloom sprays of sulfcarbamide (Wilthin), pelargonic acid (Thinex), and endothalic acid (Endothal), ammonium thiosulfate (ATS) or petal fall spray of carbaryl (Sevin XLR Plus) were developed as replacements for Elgetol. Hydrogen cyanamide (HC) and other chemicals have been used to eliminate or to reduce chilling requirements of peaches grown under the warm desert conditions. HC applied at “pink bloom” stage was observed to reduce the number of open blooms in `Florda Prince' peach; therefore, it was first used for blossom thinning in this cultivar in Arizona. Later, HC was also found to be an effective blossom thinner for plums in Idaho. HC has recently been found to effectively thin apple and peach blossoms. Armothin has also been an effective blossom thinner for peach in California.

Establishment of a Non-dormant Blueberry (Vaccinium Corymbosum Hybrid) Production System in a Warm Winter Climate

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 529a-529
Author(s):  
Rebecca L. Darnell ◽  
J.G. Williamson ◽  
T.A. Obreza
Keyword(s):  
Production System ◽  
Soil Amendments ◽  
Organic Soil ◽  
Vaccinium Corymbosum ◽  
Flower Bud ◽  
Winter Climate ◽  
Warm Winter ◽  
Canopy Volume ◽  
Continuous Application ◽  
Leaf Retention

A high-density planting of three southern highbush cultivars was established in 1994 in southwest Florida to test the feasibility of a non-dormant blueberry production system. A non-dormant system involves continuous application of nitrogen throughout fall and winter, which enables the plants to avoid the normal dormancy cycle and the concomitant chilling requirement. Three nitrogen fertilizer rates and two organic soil amendments (muncipal solid waste compost and acidic peat) were evaluated for effects on maintaining plant growth in this system. In general, increasing N rates from 84 to 252 kg·ha–1 increased plant canopy volume, leaf retention, and rate of new vegetative budbreak. Plant height and volume were consistently greater for plants grown in the compost compared to the peat amendment, but there were no differences in leaf retention or vegetative budbreak between the two soil amendments. Flower bud density and fruit yield were increased in plants grown in the compost compared to the peat, while N rate had no effect on either. Plants in this non-dormant system have shown no deleterious growth effects, suggesting that establishing a blueberry planting in a warm winter climate is feasible under the described conditions.

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