Leila Baghazadeh Daryaii; Davood Samsampour; Abdolnabi Bagheri; Majid Askari Seyahooei; Mojdeh Raam
Abstract
Investigating genetic diversity in plant species provides a platform for further insight in plant breeding and conservation. Therefore, in the present study genetic diversity of 13 geographically isolated genotypes of Zhumeria majdea, as a seriously endangered medicine plant growing exclusively in Hormozgan ...
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Investigating genetic diversity in plant species provides a platform for further insight in plant breeding and conservation. Therefore, in the present study genetic diversity of 13 geographically isolated genotypes of Zhumeria majdea, as a seriously endangered medicine plant growing exclusively in Hormozgan province (South of Iran) was studied. To do so, the leaf samples of Z. majdea were collected from the main growing habitats of this spices including Haji Abad, Geno and Bastak regions. The collected leaf samples were subjected to DNA extraction followed by PCR assay, using Inter-Simple Sequence Repeats (ISSR) markers. Twelve markers produced totally 121 polymorphic bands and revealed a clear-cut among and within Z. majdea genotypes. The analysis of molecular variance (AMOVA) showed 86% and 14% variations within and among populations, respectively. Cluster analysis divided genotypes into four main groups. The first and second principle coordinates allocated 28.81% and 15.71% of the variations, respectively. In addition to the innate differences of the individuals, the high intra population variation of Z. majdea, can also be explained by differences in the presence or absence of endophytes and differences in the type and genetic pattern of their endophytes.
Santosh Kumar Bose; Shakil Ahmed; Prianka Howlader; Mohammad Ali
Abstract
Guava is one of the most important commercial fruit crop in Bangladesh due to its high nutrient value, good taste and high health benefits. This study was conducted to investigate the flowering, fruiting behavior and nutritional quality of guava genotype suitable for coastal region of Bangladesh. Fifteen ...
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Guava is one of the most important commercial fruit crop in Bangladesh due to its high nutrient value, good taste and high health benefits. This study was conducted to investigate the flowering, fruiting behavior and nutritional quality of guava genotype suitable for coastal region of Bangladesh. Fifteen genotypes (PG 01 to PG 15) having satisfactory growth were selected for this study. One branch was randomly selected in each direction (North, South, East and West) to collect field data from each plant. Among the genotypes, the highest percentage (87.62%) of fruit setting and the maximum time (115.8 days) required for fruit maturation were recorded from PG 13 and PG 14, respectively. The PG 12 had the highest fruit weight (312.6 g) and the longest fruit (9.34 cm), whereas the highest diameter (26.28 cm) of fruit was recorded in PG 06. The maximum numbers of seeds (411.20) were counted from PG 10 whereas no seed was obtained in the PG 01 and PG 02. Maximum anthocyanin (0.17 mg/100 g FW), lowest pH (3.31), maximum vitamin C content (91.25 mg/ 100g FW), total sugar (6.56 %) and TSS (5.19 ºBrix) were also recorded in the seedless genotype (PG 01). Moreover, the quality characteristics, pulp percentage of seedless genotype (PG 01 and PG 02) was comparatively higher than the other genotypes. The genotypes PG 01 and PG 02 have shown important pomological traits for further study, variety improvement and selection as new variety.
