scholarly journals Comparative Transcriptomic Analysis of Two Bottle Gourd Accessions Differing in Fruit Size

Genes ◽  
2020 ◽  
Vol 11 (4) ◽  
pp. 359
Author(s):  
Hongyuan Zhang ◽  
Jie Tan ◽  
Min Zhang ◽  
Shuping Huang ◽  
Xia Chen

The bottle gourd (Lagenaria siceraria) is an important horticultural and medicinal crop with high nutritional value. This study aimed at examining the molecular regulation of fruit size in bottle gourd. We performed transcriptome sequencing of two bottle gourd cultivars differing in their fruit size. The average fruit length and weight of the cultivar Hang (39.48 cm/624.4 g) were higher than those of the cultivar USA (10.34 cm/152.8 g) at maturity. Transcriptome sequencing and assembly resulted in 89,347 unigenes. A total of 1250 differentially expressed genes (DEG) were found between the two cultivars, including 422 upregulated genes and 828 downregulated genes in Hang as compared to USA. Genes related to cell wall metabolism, phytohormones, cell cycle, and cell division showed significant differential expression between the two cultivars. DEGs encoding transcription factors (TF) from nine TF families were also identified. The ethylene response factor family was the most enriched among these families. Our study provides a basis for further investigations of the molecular regulation of fruit size in bottle gourd.

2018 ◽  
Vol 13 (9) ◽  
pp. 1934578X1801300
Author(s):  
Dario Paolo ◽  
Giulia Bianchi ◽  
Roberto Lo Scalzo ◽  
Carlo F. Morelli ◽  
Marco Rabuffetti ◽  
...  

Tomato is one of the most widely consumed fresh vegetables in the industrialized world and an important source of healthy constituents of the human diet. Despite the unique flavor characteristics of tomatoes, which make them extremely valuable in cooking, and their recognized beneficial role in the diet, the quality of tomato was traditionally only considered in connection to external appearances. As it happened with other highly requested crops, breeding programs of tomato focused their efforts on developing new varieties with higher yields and stress resistance, with better uniformity in fruit size, brighter color and prolonged shelf life. The downside of these strategies was that organoleptic features and nutritional value were often neglected, with a detrimental effect on commercial tomatoes. Over the last years, there has been an increase in consumers’ demand for tasty and healthy products. This aspect, paired with novel and multidisciplinary approaches to tomato research, allowed both sensory and nutritional qualities to be reconsidered as valuable parameters in breeding. In this review we describe the main chemical constituents of tomato, focusing on the flavor compounds (both volatile and non-volatile compounds) and secondary metabolites. Particular attention is paid to their beneficial effects on human health and their relevance to the overall quality of tomato.


Author(s):  
Salem El shatshat ◽  
Fatma Elshibani

Arbutus pavarii Pamp. (Ericaceae) is one of the endemic species in Libya. Samples of the non-ripened and ripened fruits of Arbutus pavarii Pamp. were collected from its natural habitat (El-Gabel El-Akhdar, Libya).Fruit characters like fruit size, weight, fruit mass and seeds per fruit were estimated. The vitamin content of A, C and E was estimated using different methods. The total phenolic and flavonoids content of the fruits was determined spectrophotometrically. The antioxidant activity was assessed using a modified quantitative (DPPH) assay at two maturation stages of fruits (green and red). The results were discussed according to the nutritional value of the fruits. KEY WORDS: Arbutus pavarii; antioxidant activity; DPPH; phenolics and flavonoids.


2021 ◽  
Vol 22 (1&2) ◽  
pp. 59-64
Author(s):  
Prasanna H. S. ◽  
B.N. Maruthi Prasad ◽  
Vishnuvardhana K. ◽  
T.H. Shankarappa ◽  
Jayashree Ugalat ◽  
...  

Chia is an important medicinal crop with lot of nutritional value in seeds and there is lot of demand to chia seeds grown without any chemical application. In this context, present study was concentrated on foliar application of different elicitors at 25 and 50 days after sowing as effective plant protectants by inducing plant defense response. Both black and white chia plants sprayed with chitosan at 200 ppm were un-affected by any pest and diseases. The plants sprayed with other elicitors like 100 ppm of salicylic acid, methyl jasmonic acid, potassium silicate, 200 ppm of boric acid, humic acid and 5000 ppm of dry yeast and PGPR are less prone to pest and disease attack. Whereas, the maximum pest infestation and disease incidence were noticed in plants sprayed with gibberellic acid (pest - 2.38 and 1.93%; disease - 0.89% in both) and in control (pest - 1.34 and 1.04%; disease - 1.34 and 0.74%) in black and white chia respectively.


2021 ◽  
Vol 9 (3) ◽  
pp. 54-59
Author(s):  
Atul Sharma ◽  

An investigation was carried out to study the performance of 28 hybrids of bottle gourd (Lagenaria siceraria mol. stand) through diallel mating design excluding reciprocals. Observations were recorded on the traits, viz., number of primary branches per vine, days to 50% flowering, node number at which first female flower appears, days to initiation of first female flower, number of fruits per vine, days to first fruit harvest, fruit weight, fruit size, hundred seed weight, flesh thickness, vine length and fruit yield per vine besides quality traits such as moisture content and TSS content in the fruit. Among the 28 hybrids of bottle gourd studied, thecross ‘PSPL X Pusa Naveen excelled in yield per vine, followed by the crosses ‘DBG-5XPusa Naveen. Thus, first generation hybrids can be well-utilized for exploiting hybrid vigour to achieve improved quality.


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