Effect of sire population on the genetic diversity and fitness of F1 progeny in the endangered Chinese endemic Sinocalycanthus chinensis

Sinocalycanthus chinensis Cheng et S. Y. Chang (Calycanthaceae), which has a unique systematic status, is listed as a national second-class protected plants of China . In this study, the genetic diversity, performance, and fitness of F1 progeny from crosses between the Damingshan (DMS) population of Sinocalycanthus chinensis and pollen parents from the Daleishan (DLS) and Longxushan (LXS) populations were examined. The DLS population has a relatively small population size, low genetic diversity, and considerable geographical and genetic distances from the DMS population relative to the LXS population. Compared with naturally occurring seeds, DLS-sired seeds had the highest thousand-seed weight, starch content, fat content, germination rate, germination index, and emergence rate, but the lowest protein content. Naturally occurring, open-pollinated seeds had the lowest thousand-seed weight, starch content, and fat content, but the highest protein content. Compared with natural F1 progeny,..., Pollen sources
Plants from two S. chinensis populations located at two sites with different population sizes, levels of genetic diversity, and the relative geographical and genetic distances from the DMS seed parent were used as the pollen parents. One is located at Longxushan Mountain (LXS) in Anhui Province, China; this population is small with relatively high genetic diversity and with short geographical and low genetic distances from the DMS population (Table 1). This S. chinensis population is also within an evergreen broad-leaved forest. The main accompanying species are Litsea coreana var. sinensis, Symplocos setchuensi and Platycarya strobilacea. The other pollen parent population is located at Daleishan Mountain (DLS) in Tiantai County, Zhejiang Province, China, and it is a medium-sized population located a long geographical distance from the DMS population (Table 1). This S. chinensis population is located among shrubs within a valley. The main accompanying species are Camelli..., Original data for the figures and light response curve were provided. , This README file was generated on 2024-02-20 by Junmin Li.

# Title of Dataset

Effect of sire population on the genetic diversity and fitness of F1 progeny in the endangered Chinese endemic Sinocalycanthus chinensis

## Date of data collection

Fruit data were collected in 2009. Seed data and light response data were collected in 2010.

### Links to publications that cite or use the data

Li JM, Qi CH, Gu JJ, Jin ZX. Effect of sire population on the genetic diversity and fitness of F1 progeny in the endangered Chinese endemic Sinocalycanthus chinensis. Ecology and Evolution, 2020, 10: 4091-4103.

#### File interview

Data for figures is an Excel document with three sheets. Light response curves data is an Excel document.

#### Description of the data

1. Data for Fig. 2 and Fig. 3(a) sheet in **Data for figures.xls**
Number of variables: 6
Number of characteristics: 3

Variable List:
Seeds number per fruit (#): The number of seed in every fruit
Thousand seeds w...