Identification and Classification of the Green Tea Varieties by the Morphological Characters of Flower Organs

Takeda, Yoshiyuki; Toyao, Tadayuki

doi:10.5979/cha.1980.52_1

Cited by 5 publications

(4 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…S type (Takeda and Toyao 1980). In teas collected in Korean temples, unlike the Japanese, there are many L types, and the teas are considered closer to the Chinese types (Ikeda and Park 2002).…”

Section: Discussionmentioning

confidence: 99%

The Korean Tea Plant (<i>Camellia sinensis</i>): RFLP Analysis of Genetic Diversity and Relationship to Japanese Tea

Matsumoto¹,

Kiriiwa

2004

Breed. Sci.

View full text Add to dashboard Cite

We used RFLP analysis with phenylalanine ammonialyase (PAL) cDNA as a probe to evaluate the genetic diversity of the Korean tea plant (Camellia sinensis var. sinensis). We analyzed 297 plants collected from the grounds of 6 old temples and from 1 tea farm. The patterns of DNA fragments in plants from the 6 temples were variable and differed from those of Japanese teas. In Japanese teas the PAL locus is composed of 3 multifragment alleles, but at least 10 fragment alleles were apparent in the Korean teas. The Korean teas showed greater genetic diversity than Japanese teas. The RFLP patterns of all 12 samples taken from the tea farm, where Japanese tea seeds had been introduced historically, were the same as those of the Japanese teas. The Korean teas were divided into 2 different genetic groups; one group was found around old temples and was probably derived from China. The other originated from Japanese teas that were introduced 50 to 100 years ago. RFLP analysis using PAL cDNA was very useful for the detection of genetic diversity in Korean teas, because the results of this analysis were similar to those of previous RAPD and morphological studies and were able to reveal the existence of the 2 tea groups. Our results showed that not only several morphological characters, but also the genetic background of Korean teas, differed from those of Japanese teas. Although further evaluation of Korean teas as genetic resources is required, it is possible that Korean teas will prove useful in Japanese tea breeding.

show abstract

Section: Discussionmentioning

confidence: 99%

The Korean Tea Plant (<i>Camellia sinensis</i>): RFLP Analysis of Genetic Diversity and Relationship to Japanese Tea

Matsumoto¹,

Kiriiwa

2004

Breed. Sci.

View full text Add to dashboard Cite

show abstract

“…Floral morphology is useful for the analysis of genetic relationships because of its high heritability, and has been used to evaluate relationships among genetic backgrounds in C. sinensis (Takeda and Toyao 1980;Toyao and Takeda 1999;Chen et al 2005). Therefore, we evaluated each accession for density of pubescence of the ovary, level of style protrusion, number of split style segments, depth of style splitting, and extent of style bending.…”

Section: Phenotyping Of Germplasmsmentioning

confidence: 99%

Worldwide core collections of tea (Camellia sinensis) based on SSR markers

Taniguchi

Kimura

Saba

et al. 2014

Tree Genetics & Genomes

View full text Add to dashboard Cite

Tea (Camellia sinensis (L.) O. Kuntze) is the world's most popular beverage crop. However, to date, no core collection has been selected from worldwide germplasm resources on the basis of genotype data. In this study, we analyzed 788 tea germplasm accessions using 23 simple sequence repeat (SSR) markers. Our population structure analysis divided the germplasms into a Japanese group and an exotic group. The latter could be divided into var. sinensis and var. assamica. The genetic diversity was higher in germplasms from China, Taiwan, India, and Sri Lanka than in those from other countries, and low in germplasms from Japan. Using the number of SSR alleles as a measure of genetic diversity, we developed a core collection consisting of 192 accessions and three subcore collections with 96, 48, and 24 accessions. Although the results might be affected by marker-selection bias, the core 192 collection adequately covered the range of variation of the 788 accessions in floral morphology, and the chemical composition of first-flush leaves. These collections will be powerful tools for breeding and genetic research in tea.

show abstract

“…sinensis and var. assamica based on morphophysiological [1][2][3]11,16,19,21 and biochemical 7,10 traits. This classification was adopted here, but with a minor change, namely the separation of var.…”

Section: Methodsmentioning

confidence: 99%

Selection of Early Lines without Frost Damage Based on Parameters of Accumulated Temperature for Flushing and Opening Speed of New Leaves in Tea

Omae

Takeda²

2003

JARQ

Self Cite

View full text Add to dashboard Cite

Given the demand by farmers for early budding cultivars in tea, this study was carried out to select moderately early lines without frost damage, as well as lines showing rapid growth after flushing among 1,300 tea (Camellia sinensis) accessions preserved at the Makurazaki Station of the National Institute of Vegetable and Tea Science, Japan. A model for flushing and leaf opening [y = (ax+b), y: number of open leaves, x: effective accumulated temperature calculated by integrating values of temperatures being 10°C below the daily minimum air temperature since the date of autumn skiffing and a, b: parameters] was developed before the selection. For the selection, the estimated parameters were used as indicators of the flushing temperature and opening speed of tea leaves. As a result, 120 moderately early lines, 79 rapidly growing lines and 12 lines (parameter a>0.5, x 0 = 145-150°C) with both characteristics were selected. Furthermore, Taiwan-yamacha which showed extremely late flushing characteristics, accounted for 44 of the 68 late flushing lines and is expected to be used as breeding material to extend the harvesting period for the first crop.Discipline: Genetic resources / Plant breeding / Tea industry Additional key words: Camellia sinensis, sensitivity to temperature JARQ 37 (3), 183 -188 (2003) http://www.jircas.affrc

show abstract

Identification and Classification of the Green Tea Varieties by the Morphological Characters of Flower Organs

Cited by 5 publications

References 3 publications

The Korean Tea Plant (<i>Camellia sinensis</i>): RFLP Analysis of Genetic Diversity and Relationship to Japanese Tea

The Korean Tea Plant (<i>Camellia sinensis</i>): RFLP Analysis of Genetic Diversity and Relationship to Japanese Tea

Worldwide core collections of tea (Camellia sinensis) based on SSR markers

Selection of Early Lines without Frost Damage Based on Parameters of Accumulated Temperature for Flushing and Opening Speed of New Leaves in Tea

Contact Info

Product

Resources

About