Molecular Mapping of QTLs and Genes for Plant Architecture and Fruit Traits in Cucumber

2021 ◽  
pp. 37-54
Author(s):  
Kiros Gebretsadik ◽  
Daoliang Yu ◽  
Kailiang Bo
Keyword(s):  
Plant Architecture ◽  
Molecular Mapping ◽  
Fruit Traits

scholarly journals Breeding Cultivars from Blueberry × Deerberry Hybrids: Progress and Prospects

HortScience ◽  
2021 ◽  
Vol 56 (4) ◽  
pp. 439-446
Author(s):  
Paul M. Lyrene
Keyword(s):  
Plant Architecture ◽  
Diploid Species ◽  
Morphological Characters ◽  
Yield Potential ◽  
Recurrent Parent ◽  
Highbush Blueberry ◽  
Lake Okeechobee ◽  
Fruit Traits ◽  
Berry Quality ◽  
Opportunity For Selection

Vaccinium stamineum (deerberry) is a highly variable diploid species in section Polycodium. Deerberry is native on excessively drained sandy soils from southeastern Ontario, south through the Florida peninsula to Lake Okeechobee, west to eastern Texas and southeastern Kansas. The V. stamineum used in this study were tall plants (2–4 m) native in north Florida, with a plant architecture similar to rabbiteye blueberry (V. virgatum). Starting in 2013 with crosses between tetraploid highbush cultivars (section Cyanococcus) and colchicine-doubled V. stamineum, hundreds of F1 and thousands of later-generation seedlings were grown and evaluated in high-density field nurseries at Citra in North Florida. The populations studied included F1, F2, backcrosses to each parent species, and BC1 × BC1 seedlings. The goal of the study was to assess the feasibility of introgressing into highbush blueberry cultivars desirable traits from V. stamineum (drought tolerance, red-flesh berries, new flavor components, open flowers with short corolla cups and exserted anthers and stigmas) without introducing horticulturally problematic characteristics (bitter skin, berries that shatter when ripe, difficult vegetative propagation). Vigor averaged very low in F1 seedlings, higher in F2 seedlings and in seedlings from backcrosses to V. stamineum, and highest in seedlings from backcrosses to highbush. Most crosses yielded numerous plump seeds, but crosses to produce F1 hybrids yielded fewer than 10% as many seeds as highbush × highbush crosses. Most vegetative, flower, and fruit traits that differentiate highbush from V. stamineum were intermediate in F1 seedlings. Backcross seedlings more closely resembled the recurrent parent. Variability in morphological characters was high in every generation, giving much opportunity for selection. Some seedlings from backcrosses to highbush (≈5%) appeared to have the vigor, berry quality, and yield potential required in commercial cultivars. Producing highbush cultivars that strongly express a particular V. stamineum trait might best be accomplished by growing large, segregating F2 populations from which parents for backcrosses can be selected.

PROFILING OF GUAVA GENOTYPES GROWN IN VIDARBHA CONDITIONS ON THE BASIS OF MORPHOLOGICAL TRAITS

2017 ◽  
Vol 23 (1) ◽  
Author(s):  
R.A. PATIL ◽  
S.G. BHARAD ◽  
S.N. SAWANT
Keyword(s):  
Genetic Diversity ◽  
Genetic Variability ◽  
Morphological Traits ◽  
Considerable Extent ◽  
Fruit Traits ◽  
Breeding Programmes ◽  
Tree Leaf ◽  
Qualitative Characteristics ◽  
Intrapopulation Diversity

Assessment of genetic diversity in the available germplasm is the prerequisite for development of improved genotypes through planned breeding programmes. In the view of this Forty-eight genotypes of seedling origin guava along with 1 check (L-49/Sardar) collected and conserved at germplasm block, Main Garden, Department of Horticulture, Dr. P. D. A. University, Akola were evaluated for genetic variability and diversity based on the qualitative characteristics. The genotypes were evaluated for sixteen morphological traitsviz. tree, leaf, floral and fruit traits. Results Show considerable extent of variability amongst the 49 genotypes in each traits. A sizeable amount of intrapopulation diversity recorded can be used to identify diverse parents which can be utilized in hybridization programmes.

Molecular Mapping of Powdery Mildew Resistance Gene MlWE18 in Wheat Originated from Wild Emmer (Triticum turgidum var. dicoccoides)

2009 ◽  
Vol 35 (10) ◽  
pp. 1791-1797 ◽  
Author(s):  
Jun HAN ◽  
Lian-Song ZHANG ◽  
Gen-Qiao LI ◽  
Hong-Tao ZHANG ◽  
Chao-Jie XIE ◽  
...  
Keyword(s):  
Powdery Mildew ◽  
Resistance Gene ◽  
Powdery Mildew Resistance ◽  
Molecular Mapping ◽  
Triticum Turgidum ◽  
Wild Emmer ◽  
Powdery Mildew Resistance Gene ◽  
Mildew Resistance

Characteristics and molecular mapping of a novel chlorophyll-deficient yellow-leaf mutant in rice

2012 ◽  
Vol 34 (2) ◽  
pp. 223-229 ◽  
Author(s):  
Chao-Hui LIU ◽  
Xiao-Yan LI ◽  
Jian-Hui ZHANG ◽  
Dong-Zhi LIN ◽  
Yan-Jun DONG
Keyword(s):  
Molecular Mapping ◽  
Yellow Leaf ◽  
Leaf Mutant

Genetic Analysis and Molecular Mapping of a Yellow green Leaf Gene(YGL4) in Rice(Oryza sativa L.)

2009 ◽  
Vol 35 (8) ◽  
pp. 1405-1409 ◽  
Author(s):  
Meng-Meng LIU ◽  
Xian-Chun SANG ◽  
Ying-Hua LING ◽  
Peng DU ◽  
Fang-Ming ZHAO ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Genetic Analysis ◽  
Molecular Mapping ◽  
Green Leaf

Identification and Molecular Mapping of Xa32(t), a Novel Resistance Gene for Bacterial Blight (Xanthomonas oryzae pv. oryzae) in Rice

2009 ◽  
Vol 35 (7) ◽  
pp. 1173-1180 ◽  
Author(s):  
Chong-Ke ZHENG ◽  
Chun-Lian WANG ◽  
Yuan-Jie YU ◽  
Yun-Tao LIANG ◽  
Kai-Jun ZHAO
Keyword(s):  
Resistance Gene ◽  
Bacterial Blight ◽  
Molecular Mapping ◽  
Xanthomonas Oryzae

Genetic Analysis and Molecular Mapping of a Male Sterile Mutant in Rice

2009 ◽  
Vol 35 (6) ◽  
pp. 1151-1155
Author(s):  
Ming-Guang CHU ◽  
Shuang-Cheng LI ◽  
Shi-Quan WANG ◽  
Qi-Ming DENG ◽  
Jing ZHANG ◽  
...  
Keyword(s):  
Genetic Analysis ◽  
Molecular Mapping ◽  
Male Sterile ◽  
Sterile Mutant

Molecular Mapping of Powdery Mildew Resistance GeneMlDH155in Hexaploid Wheat DH155 and Its Transfer by Marker Assisted Selection

2015 ◽  
Vol 41 (8) ◽  
pp. 1183
Author(s):  
Chang-Ying GUAN ◽  
Jun GUO ◽  
Feng-Bo XUE ◽  
Guang-Xu ZHANG ◽  
Hong-Wei WANG ◽  
...  
Keyword(s):  
Powdery Mildew ◽  
Hexaploid Wheat ◽  
Marker Assisted Selection ◽  
Powdery Mildew Resistance ◽  
Molecular Mapping ◽  
Mildew Resistance

Genetic Analysis and Molecular Mapping of a Rolled Leaf Gene RL13in Rice(Oryza sativa L.)

2012 ◽  
Vol 38 (3) ◽  
pp. 423
Author(s):  
Xiao-Qing TIAN ◽  
Xian-Chun SANG ◽  
Fang-Ming ZHAO ◽  
Yun-Feng LI ◽  
Ying-Hua LING ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Genetic Analysis ◽  
Molecular Mapping ◽  
Oryza Sativa L ◽  
Rolled Leaf
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