Evidence map›Paper›PMID 39587484›Full record

ArticleBMC plant biology2024

Genetic variations in morphology, chromosome number, and physiology of backcross progeny of the triploid hybrid clone 'Beilinxiongzhu 1#'.

Yaru Sang, Yifan Zhao, Bo Kong, Dawei Cheng, Liang Li, Lexun Ma, Jiahua Du, Yunyun Xie, Meiling Long, Dongliang Cao and 1 more

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Article in BMC plant biology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

11 authors.

Yaru SangState Key Laboratory of Efficient Production of Forest Tree Resources, Beijing Forestry University, Beijing, 100083, China.
Yifan ZhaoState Key Laboratory of Efficient Production of Forest Tree Resources, Beijing Forestry University, Beijing, 100083, China.
Bo KongState Key Laboratory of Efficient Production of Forest Tree Resources, Beijing Forestry University, Beijing, 100083, China.
Dawei ChengState Key Laboratory of Efficient Production of Forest Tree Resources, Beijing Forestry University, Beijing, 100083, China.
Liang LiState Key Laboratory of Efficient Production of Forest Tree Resources, Beijing Forestry University, Beijing, 100083, China.
Lexun MaState Key Laboratory of Efficient Production of Forest Tree Resources, Beijing Forestry University, Beijing, 100083, China.
Jiahua DuState Key Laboratory of Efficient Production of Forest Tree Resources, Beijing Forestry University, Beijing, 100083, China.
Yunyun XieState Key Laboratory of Efficient Production of Forest Tree Resources, Beijing Forestry University, Beijing, 100083, China.
Meiling LongState Key Laboratory of Efficient Production of Forest Tree Resources, Beijing Forestry University, Beijing, 100083, China.
Dongliang CaoState Key Laboratory of Efficient Production of Forest Tree Resources, Beijing Forestry University, Beijing, 100083, China.
Pingdong ZhangState Key Laboratory of Efficient Production of Forest Tree Resources, Beijing Forestry University, Beijing, 100083, China. zhangpd@bjfu.edu.cn.

Funding

National Key Research and Development Program of China 2022YFD2200301-02
6 · The paper itself

Abstract

backgroundAneuploidy in plants commonly presents as large variations in morphology, physiology, biochemistry, and genetic effects owing to its karyotypic imbalance.

resultsIn this study, the trait variations of 393 offspring obtained by pollinating Populus alla × Populus glandulosa 'YXY 7' (2n = 2x = 38) with Populus 'Beilinxiongzhu 1#' (2n = 3x = 57) were explored. The results showed several morphological variations in the cotyledons, including two (69.68%), three (24.07%), and four cotyledons (6.25%). Additionally, the progeny exhibited extensive segregation of ploidy levels, ranging from 38 to 74. Furthermore, seedlings with different chromosome numbers varied in growth traits and physiological activities during growth and development. The backcross progeny with 51-60 chromosomes had a significantly larger basal diameter and seedling height than those with other chromosome numbers. The phenotypic correlations between the traits indicated that the dose effect of the chromosomes significantly affected the basal diameter, petiole length, and leaf length, particularly with stomatal length and stomatal density. Weak and negative estimated correlations were observed between the physiological traits associated with photosynthesis and most of the studied traits.

conclusionsThis study provides new genetic material with different chromosome compositions, which will contribute to analyzing chromosomal function and integrate the variations in chromosomal dosage into Populus breeding programs.

Indexed as

Chromosomes, PlantGenetic VariationPopulusTriploidyCrosses, GeneticPhenotypeSeedlingsAneuploidBackcross progenyChromosomal dosageCotyledonGenetic variation

Identifiers

PMID39587484
PMCPMC11590511

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