Biomorphological Characterization of Brazilian Capsicum Chinense Jacq. Germplasm

被引：22

作者：

Bianchi, Paola Alvares ^{[1
]}

Almeida da Silva, Ligia Renata ^{[2
]}

da Silva Alencar, Antonio Andre ^{[1
]}

Araujo Diniz Santos, Pedro Henrique ^{[1
]}

Pimenta, Samy ^{[3
]}

Sudre, Claudia Pombo ^{[1
]}

Erpen-Dalla Corte, Ligia ^{[4
]}

Azeredo Goncalves, Leandro Simoes ^{[4
]}

Rodrigues, Rosana ^{[1
]}

机构：

[1] Univ Estadual Norte Fluminense Darcy Ribeiro UENF, Plant Breeding Dept, BR-28013602 Campos Dos Goytacazes, RJ, Brazil

[2] Gannan Normal Univ, Natl Navel Orange Engn Res Ctr NORC, Shiyuan Rd, Ganzhou 341000, Peoples R China

[3] Univ Estadual Montes Claros, Dept Agr Sci, Av Reinaldo Viana 2630, BR-3944000 Janauba, MG, Brazil

[4] Univ Estadual Londrina UEL, Agron Dept, Rodovia Celso Garcia Cid,Km 380, BR-86051900 Londrina, Parana, Brazil

来源：

AGRONOMY-BASEL | 2020年 / 10卷 / 03期

关键词：

chili pepper; gene bank; molecular markers; morphological descriptor; GENETIC DIVERSITY; ANNUUM L; MORPHOLOGICAL CHARACTERIZATION; AGRONOMIC TRAITS; FRUTESCENS L; PEPPER; ACCESSIONS; WILD; MAP; VARIABILITY;

D O I：

10.3390/agronomy10030447

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Loss of biodiversity and ecosystem degradation become major concerns worldwide, making the conservation process an important strategy for maintaining biodiversity. Capsicum chinense Jacq. is the most Brazilian species of the genus, with representatives in different biomes. Anthropic pressure, such as burns, real estate speculation, and changing cultivation habit has led to risks of genetic erosion. Conservation and characterization of conserved accessions are paramount to ensure genetic diversity, useful for the bioeconomy and for genetic improvement. We report the characterization of 55 C. chinense accessions from four different regions of Brazil and one accession from Peru. The accessions were characterized based on 37 morpho-agronomic variables, Inter Simple Sequence Repeats-ISSR and Simple Sequence Repeat-SSR. Qualitative descriptors were analyzed using a descriptive statistical, while the quantitative descriptors were analyzed via F test and significant differences in mean values were separated using Scott-Knott test. The relative contribution of each quantitative trait was determined. A correlation between morphological and molecular distances was calculated. Color of ripe fruit and fruit shape had the largest number of observed classes. Six distinct groups and the joint analysis presented an entanglement rate of 0.58, evidencing the divergence of accessions between the groups of both dendrograms. Bayesian analysis allowed the distinction of two clusters for SSR. A significant variability was observed among accession with potential to integrate several breeding programs.

引用

页数：17