scholarly journals Host-based genetic divergence in populations of an exotic spiralling whitefly, Aleurodicus dispersus (Hemiptera: Aleyrodidae)

2019 ◽  
Vol 116 ◽  
pp. 221-228 ◽  
Author(s):  
Thangavel BOOPATHI ◽  
Subbarayalu MOHANKUMAR ◽  
GAYACHARAN GAYACHARAN ◽  
Manickavasagam Pillai KALYANASUNDARAM ◽  
Soibam Basanta SINGH ◽  
...  
Hereditas ◽  
2002 ◽  
Vol 136 (3) ◽  
pp. 240-246 ◽  
Author(s):  
P. M. O'GRADY ◽  
C. M. DURANDO ◽  
W. B. HEED ◽  
M. WASSERMAN ◽  
W. ETGES ◽  
...  

2019 ◽  
Vol 25 (1) ◽  
Author(s):  
SUDHANSHU SHEKHAR ◽  
V.P. DWIVEDI ◽  
N.K. SRIVASTAVA

Genetic divergence of Babul (Acacia nilotica) was assessed using Mahalanobis 0 statistics. They were grouped into eight clusters. Maximum genetic distance was recorded between III & VIII ciusters indicating greater distance between two clusters that showed maximum diversity amount the genotype and helps in hybridization programme.


2019 ◽  
Vol 18 (2) ◽  
pp. 127
Author(s):  
Purnama Hidayat ◽  
Denny Bintoro ◽  
Lia Nurulalia ◽  
Muhammad Basri

Species identification, host range, and identification key of whiteflies of Bogor and surrounding area. Whitefly (Hemiptera: Aleyrodidae) is a group of insects that are small, white, soft-bodied, and easily found on various agricultural crops. Whitefly is a phytophagous insect; some species are important pests in agricultural crops that can cause direct damage and can become vectors of viral diseases. The last few years the damage caused by whitefly in Indonesia has increased. Unfortunately, information about their species and host plants in Indonesia, including in Bogor, is still limited. Kalshoven, in his book entitled Pest of Crops in Indonesia, published in the 1980s reported that there were 9 species of whitefly in Indonesia. The information on the book should be reconfirmed. Therefore, this study was conducted to determine whitefly species and its host plants in Bogor and its surroundings. Whiteflies is identified based on the ‘puparia’ (the last instar of the nymph) collected from various agricultural plants, ornamental plants, weeds, and forest plants. A total of 35 species of whiteflies were collected from 74 species and 29 families of plants. The collwcted whiteflies consist of four species belong to Subfamily Aleurodicinae and 31 species of Subfamily Aleyrodinae. The most often found whitefly species were Aleurodicus dispersus, A. dugesii, and Bemisia tabaci. A dichotomous identification key of whiteflies was completed based on morphological character of 35 collected species. The number of whitefly species in Bogor and surrounding areas were far exceeded the number of species reported previously by Kalshoven from all regions in Indonesia.


2020 ◽  
Vol 27 (2) ◽  
pp. 81-86
Author(s):  
Cuong The Pham ◽  
Minh Duc Le ◽  
Chung Van Hoang ◽  
Anh Van Pham ◽  
Thomas Ziegler ◽  
...  

We record two species of amphibians for the first time from Vietnam: Bufo luchunnicus from Lao Cai and Son La provinces and Amolops wenshanensis from Quang Ninh Province. Morphologically, the Vietnamese representatives of B. luchunnicus resemble the type series from China. The specimen of A. wenshanensis from Vietnam slightly differs from the type series from China by having a smaller size (SVL 33.2 mm vs. 35.7 – 39.9 mm in males) and the presence of distinct transverse bands on the dorsal surfaces of limbs. Genetic divergence between the sequence of the Vietnamese specimen and those of A. wenshanensis from China available from GenBank is 1.2 – 1.6% (ND2 gene). In addition, morphological data and natural history notes of aforementioned species are provided from Vietnam.


2009 ◽  
Vol 31 (11) ◽  
pp. 1121-1126 ◽  
Author(s):  
Min WANG ◽  
Jin-Shan XU ◽  
Lin-Ling WANG ◽  
Xiao-Yan ZHANG ◽  
Ze-Yang ZHOU

Nucleus ◽  
2016 ◽  
Vol 13 (1) ◽  
pp. 143-152
Author(s):  
Anna Caroline Brinco Rocha ◽  
Layane Segantini Oliari ◽  
Letícia Abreu Simão ◽  
Juliany Morosini França ◽  
João Antônio Dutra Giles ◽  
...  

2018 ◽  
Vol 5 (04) ◽  
Author(s):  
SS SOLANKEY ◽  
ANIL K SINGH

Fifty one okra F1 hybrids (using 17 lines as female and 3 testers as male parent) were evaluated in RCBD design during two different consecutive seasons (summer and rainy). Phenotypic coefficient of variability (PCV) was higher than genotypic coefficient of variability (GCV) for all studied character exhibiting environmental effects on the expression of characters. Heritability (h2b) along with genetic advance per cent of mean was found highest for character YVMV (86.95% and 150.61%). All the 51 okra hybrids were grouped into 4 distinct clusters in which Cluster II was the largest cluster having 28 F1s (54.90% of total F1s) followed by Cluster I with 14 F1s (27.45% of total F1s). Out of the major 6 PCs, 4 principal components (PC1, PC2, PC3 and PC4) accounted with proportionate values of 22.61, 17.22, 11.87 and 10.63%, respectively and contributed 62.33 % of the cumulative variation having Eigen value more than one. Moreover, based on PCs and genetic divergence in Cluster I and Cluster IV for plant height, YVMV and number of fruit per plant is important to identify the best cross combination (Arka Abhay × Arka Anamika) in okra. Therefore, the best cross combinations for improvement in various economic traits can be recommended on the basis of genetic divergence and principal component analysis in okra.


2006 ◽  
Vol 33 (1) ◽  
pp. 23-30 ◽  
Author(s):  
Angela McGaughran ◽  
Ian D. Hogg ◽  
Mark I. Stevens ◽  
W. Lindsay Chadderton ◽  
Michael J. Winterbourn

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