Genetic Variability Among Xyleborus glabratus Populations Native to Southeast Asia (Coleoptera: Curculionidae: Scolytinae: Xyleborini) and the Description of Two Related Species

2019 ◽  
Vol 112 (3) ◽  
pp. 1274-1284 ◽  
Author(s):  
Anthony I Cognato ◽  
Sarah M Smith ◽  
You Li ◽  
Thai Hong Pham ◽  
Jiri Hulcr
Keyword(s):  
Genetic Variability ◽  
Southeast Asia ◽  
Related Species ◽  
Xyleborus Glabratus

Genetic diversity of Amomum xanthioides and its related species from Southeast Asia and China

2021 ◽  
Author(s):  
Mikako Sone ◽  
Shu Zhu ◽  
Xiao Cheng ◽  
Sounthone Ketphanh ◽  
Swe Swe ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Southeast Asia ◽  
Related Species

Detection of genetic diversity in tea (Camellia sinensis) using RAPD markers

Genome ◽  
1995 ◽  
Vol 38 (2) ◽  
pp. 201-210 ◽  
Author(s):  
F. N. Wachira ◽  
R. Waugh ◽  
W. Powell ◽  
C. A. Hackett
Keyword(s):  
Genetic Diversity ◽  
Genetic Variability ◽  
Southeast Asia ◽  
Camellia Sinensis ◽  
Rapd Markers ◽  
Rapd Analysis ◽  
Random Amplified Polymorphic Dna ◽  
Systematic Assessment ◽  
Tree Crop ◽  
Taxonomic Relationships

Camellia sinensis is a beverage tree crop native to Southeast Asia and introductions have been made into several nonindigenous countries. No systematic assessment of genetic variability in tea has been done anywhere. In this study, random amplified polymorphic DNA (RAPD) analysis was used to estimate genetic diversity and taxonomic relationships in 38 clones belonging to the three tea varieties, assamica, sinensis, and assamica ssp. lasiocalyx. Extensive genetic variability was detected between species, which was partitioned into between and within population components. Seventy percent of the variation was detected within populations. Analyses based on band sharing separated the three populations in a manner consistent with both the present taxonomy of tea and with the known pedigrees of some clones. RAPD analysis also discriminated all of the 38 commercial clones, even those which cannot be distinguished on the basis of morphological and phenotypic traits.Key words: genetic diversity, RAPDs, Camellia sinensis.

scholarly journals Genetic variability in populations of sweet corn, common corn and teosinte

2011 ◽  
Vol 11 (1) ◽  
pp. 64-69 ◽  
Author(s):  
Cicero Almeida ◽  
Edson Perito Amorim ◽  
José Fernandes Barbosa Neto ◽  
Julio Alves Cardoso Filho ◽  
Maria Jane Cruz de Melo Sereno
Keyword(s):  
Zea Mays ◽  
Genetic Variability ◽  
Related Species ◽  
Population Genetic ◽  
Zea Mays L ◽  
Sweet Corn ◽  
High Variability ◽  
Maize Populations ◽  
Different Types ◽  
Two Populations

The maize (Zea mays L. ssp. mays) has several related species, called teosinte, which are distributed in various subspecies of Zea and other genera. Among the different types of corn, sweet corn shows a great potential for human food. This type was originated from mutations, which increased the amount of polysaccharide in the endosperm. In Brazil there are populations of sweet corn, common maize and teosinte, however, little is known about their genetic variability. Hence, the aim of this present paper was to analyze the genetic variability in two populations of sweet corn (BR 400 and BR 402), two common corn (Pampa and Suwan) and teosinte, using microsatellite markers. The results showed a low intra-population genetic variability in populations of maize, and high variability for the population of teosinte, suggesting that the maize populations may have limitations in future cycles of breeding.

A new species of Stenchaetothrips (Thysanoptera, Thripidae) from Bamboo, based on morphological and molecular data

Zootaxa ◽  
2017 ◽  
Vol 4323 (2) ◽  
pp. 295
Author(s):  
LAURENCE A. MOUND ◽  
DISNA N. GUNAWARDANA ◽  
DONGMEI LI
Keyword(s):  
New Species ◽  
New Zealand ◽  
Southeast Asia ◽  
Host Plant ◽  
Related Species ◽  
Molecular Data ◽  
Morphological And Molecular Data ◽  
A New Species

Stenchaetothrips martini sp.n. is distinguished from related species on morphological and molecular character states. It is the eleventh species in this genus to be recorded from a species of bamboo, but only the fourth of these 11 species to have a prominent spinula on the mesothoracic furca. Described here from New Zealand, this thrips is presumably introduced from Southeast Asia, together with its host plant, Phyllostachys aurea. 

scholarly journals Genes and smells

2011 ◽  
Vol 33 (6) ◽  
pp. 10-13 ◽  
Author(s):  
Andreas Keller
Keyword(s):  
Genetic Variability ◽  
Related Species ◽  
Odorant Receptor ◽  
Gene Duplications ◽  
Duplicated Genes ◽  
Vertebrate Species ◽  
Closely Related Species ◽  
Human Genomes ◽  
Or Genes

The recently sequenced genomes of several vertebrate species revealed large differences between the odorant receptor (OR) repertoires of even closely related species. These differences are a consequence of frequent gene duplications and subsequent mutations of duplicated genes. The same mechanisms are at work within a species, and different human genomes therefore show an unparalleled variability in the number and sequence of OR genes. Recent research has started to explore the consequences of this genetic variability for how we perceive odours.

Allozyme variation in three closely related species of Caucasian rock lizards (Lacerta)

1995 ◽  
Vol 16 (4) ◽  
pp. 331-340 ◽  
Author(s):  
Ross D. MacCulloch ◽  
F.D. Danielyan ◽  
Ilya S. Darevsky ◽  
Robert W. Murphy ◽  
Keyword(s):  
Genetic Diversity ◽  
Genetic Variability ◽  
Genetic Distance ◽  
Related Species ◽  
Allozyme Variation ◽  
Direct Count ◽  
Closely Related Species ◽  
Polymorphic Loci ◽  
Allozyme Loci ◽  
Insular Populations

AbstractGenetic diversity at 37 allozyme loci was surveyed from Lacerta valentini (4 populations), L. portschinskii and L. rudis (1 population each). The number of polymorphic loci ranged from 1 (L. valentini) to 11 (L. rudis). Mean heterozygosity (direct count) ranged from 0.003 (L. valentini) to 0.071 (L. rudis). Nei's (1978) genetic distance ranged from 0-0.03 among populations of L. valentini, 0.127-0.163 between L. valentini and L. rudis and 0.366-0.487 between L. portschinskii and the two other taxa. Indices of genetic variability for species having disjunct distributions were lower than in species with contiguous distributions, similar to the case of insular populations, which have lower values than do mainland populations.

scholarly journals Screening of the Candidate DNA Barcodes for Three Important Amorphophallus Species Identification

Agronomy ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1366
Author(s):  
Chufeng Zhao ◽  
Xuan She ◽  
Erxi Liu ◽  
Nunung Harijati ◽  
Teng Cheng ◽  
...  
Keyword(s):  
Southeast Asia ◽  
Species Identification ◽  
Related Species ◽  
Genetic Improvement ◽  
Dna Barcodes ◽  
Closely Related Species ◽  
Medicinal Value ◽  
Current Classification

Amorphophallus is widely distributed in Southeast Asia, Africa, and other places, with more than 170 species. Amorphophallus has high medicinal value and is commonly used in medicine. However, the current classification based on morphology is challenging in with regard to Amorphophallus and closely related species. This study used six barcodes, namely ITS2, matK, rcbL, nad1, trnH-psbA, and trnL-trnF, to evaluate their identification ability for three important Amorphophallus species, including A. konjac, A. albus, and A. muelleri. We recommend that trnH-psbA can be applied to the Amorphophallus trade, quickly identify the purity of A. konjac and A. albus and distinguish A. muelleri from its related species for A. konjac and A. albus genetic improvement.

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