Optimum Discrimination on the Subsection Taxonomy of Wild Tree Peony Species in China Using Pollen Characteristics DOI Creative Commons
Yi‐Ting Wang, Jiangnan Wang, Zhenguo Yan

и другие.

Horticulturae, Год журнала: 2022, Номер 8(8), С. 736 - 736

Опубликована: Авг. 16, 2022

Pollen characteristics have some significance for plant taxonomy classification. We intend to explore a more concise index value the subsection with pollen morphology and viability determined from all nine wild tree peony species, including 18 populations native China. observed morphologic characters by scanning electron microscopy measured in vitro. The results showed that polar length is decisive characteristic distinguishing two subsections section Moutan belonging Paeoniaceae. of five species subsect. Vaginatae longer than 43 μm, while four Delavayanae shorter μm. Meanwhile, differences between also play an auxiliary role classification peony. germination rate mostly greater those Delavayanae. commonly 50%, less 50%. Our study established taxonomic evidence compared

Язык: Английский

Pollen and Floral Organ Morphology of 18 Oil-Tea Genotypes and Its Systematic Significance DOI Creative Commons
Qian Yin,

Zhongfei Pan,

Yanming Li

и другие.

Horticulturae, Год журнала: 2024, Номер 10(5), С. 524 - 524

Опубликована: Май 18, 2024

Oil-tea belongs to the Camellia genus, an important oil crop in China. However, oil-tea is taxonomically challenging due its morphological variation, polyploidy, and interspecific hybridization. Therefore, present study aimed investigate flower organs’ morphology pollen micro-morphology of 18 genotypes detail discussed their significance for taxonomy. The quantitative parameters flowers were measured using Vernier caliper measurements. Pollen was observed photographed scanning electron microscopy (SEM). results indicated that size varied significantly among tested genotypes, with corolla diameter ranging from 42.25 μm C. meiocarpa ‘LP’ 89.51 oleifera ‘ASX09’. grains are monads medium grade size. There two types polar views, including triangular or subcircular, a axis length (P) 27.5 ‘CY67’ 59.04 mairei (H. Lév.) Melch. var. lapidea (Y.C. Wu) Sealy. equatorial views exhibited oblate, spherical, oblong shapes, (E) 21.32 41.62 μm. exine sculpture perforate, verrucate, reticulate. perforation lumina (D) ranged 0.29 magniflora Chang 1.22 yuhsienensis Hu, width (W) 0.77 osmantha 1.40 gauchowensis ‘HM349’, respectively. Qualitative clustering analysis (Q-type cluster) principal component (PCA) conducted eleven indexes morphology, classified into three categories. In addition, correlation showed there significant between sculpture. These offer valuable information on classification identification germplasm resources.

Язык: Английский

Процитировано

3

Taxonomic importance of pollen morphology inVeratrumL. (Melanthiaceae) using microscopic techniques DOI

Ziming Hu,

Yunyun Zhao,

Chunhai Zhao

и другие.

Microscopy Research and Technique, Год журнала: 2020, Номер unknown

Опубликована: Март 24, 2020

Previous studies reported that intrageneric relationships of genus Veratrum family Melanthiaceae are controversial and hard to delimit. Therefore, we observed the pollen morphological features six species in detail using both light microscopy scanning electron investigated their significance for taxonomy. Among them, five were studied first time. The results demonstrated grains medium size with P/E being 0.31–0.60. Three types shape polar view have been elliptic, long-elliptic, or wide-elliptic blunt rounded at ends. Two width colpus narrow wide, two depth deep flat, length extend almost do not ends, whereas membranes absent obvious. One type surface ornamentation was noted as reticulate. These support album lobelianum well grandiflorum oxysepalum independent species, respectively, rather than classifying into sections. Overall, ratio axis equatorial axial length, characteristics view, morphology, important systematic identification delimitation species.

Язык: Английский

Процитировано

5

Morphology and Viability of Pollen from Three Hardy Water Lilies and Their Cross-Compatibility with Nymphaea hybrid DOI Creative Commons
Huihui Zhang, Qi Zhou,

Huaiyan Wu

и другие.

Diversity, Год журнала: 2022, Номер 14(2), С. 92 - 92

Опубликована: Янв. 28, 2022

Owing to the wide variation in their morphological characteristics across diverse geographies, identification and classification of plants Nymphaea genus are challenging. Therefore, present study investigated pollen hardy water lilies (N. ‘Rose Arey’, N. ‘Perry’s Fire Opal’, ‘Peter Slocum’), relationship with species system evolution, cross-compatibility three strains Nymphaeahybrid (NH-1, NH-2, NH-3), a tropical waterlily. Pollen was single-grained, oblate, 18.31–20.47 × 32.51–37.64 μm. The apertures were ring-groove type, exine ornamentation rod- tumour-shaped. grains different differed size, obviousness tumour ornamentation, size density rod-like ornamentation; germination rates also significantly. Viabilities Arey’ Slocum’ highest lowest, respectively. According artificial pollination results, all hybrid combinations except (NH-1 Slocum’, NH-2 NH-3 Slocum’) bore seeds; as female parent male had seed-setting rates.

Язык: Английский

Процитировано

3

Optimum Discrimination on the Subsection Taxonomy of Wild Tree Peony Species in China Using Pollen Characteristics DOI Creative Commons
Yi‐Ting Wang, Jiangnan Wang, Zhenguo Yan

и другие.

Horticulturae, Год журнала: 2022, Номер 8(8), С. 736 - 736

Опубликована: Авг. 16, 2022

Pollen characteristics have some significance for plant taxonomy classification. We intend to explore a more concise index value the subsection with pollen morphology and viability determined from all nine wild tree peony species, including 18 populations native China. observed morphologic characters by scanning electron microscopy measured in vitro. The results showed that polar length is decisive characteristic distinguishing two subsections section Moutan belonging Paeoniaceae. of five species subsect. Vaginatae longer than 43 μm, while four Delavayanae shorter μm. Meanwhile, differences between also play an auxiliary role classification peony. germination rate mostly greater those Delavayanae. commonly 50%, less 50%. Our study established taxonomic evidence compared

Язык: Английский

Процитировано

1