Does the occurence of homostyly necessarily accompany the breakdown of heteromorphic incompatibility system? DOI Creative Commons
Jing Zhao,

Laiziti Kuliku,

Zhang Ai-qin

et al.

Frontiers in Plant Science, Journal Year: 2025, Volume and Issue: 16

Published: Feb. 27, 2025

Heterostyly is a genetic polymorphism that facilitates precise pollen transfer through reciprocal herkogamy. The loss or variation of herkogamy usually accompanied by the breakdown heteromorphic incompatibility system. Homostyly, which characterized self-compatibility and same stigma-anther height common floral morph in evolution heterostyly. Limonium aureum distylous species distributed desert northwest China, with (H-morph) widely natural populations, resembling classical homostyly. aim this study was to clarify whether occurrence H-morph also system, relationship between long-styled-/shortstyled-morph (L-/S-morph). morphs composition frequency, heterostylous syndrome, pollinators visiting efficiency were investigated five populations L. based on field observation, artificial control pollination experiment so on. All composed L-, S- H-morphs, except for ATS population only H-morph, there significant differences flower size parameter, fruit set, degree limitation, while no among within population. However, each demonstrated dimorphic pollen-stigma morphology strict especially population, they compatible morphology, regardless herkogamy, vice versa. It speculated different may be at stages evolution. without stage before distyly formation, other 4 after formation. caused separation shortening L- S-morph populations. These phenomenons independent physiological breakdown, as well coexistence from origins evolutionary have been reported first time Plumbaginaceae.

Language: Английский

Does the occurence of homostyly necessarily accompany the breakdown of heteromorphic incompatibility system? DOI Creative Commons
Jing Zhao,

Laiziti Kuliku,

Zhang Ai-qin

et al.

Frontiers in Plant Science, Journal Year: 2025, Volume and Issue: 16

Published: Feb. 27, 2025

Heterostyly is a genetic polymorphism that facilitates precise pollen transfer through reciprocal herkogamy. The loss or variation of herkogamy usually accompanied by the breakdown heteromorphic incompatibility system. Homostyly, which characterized self-compatibility and same stigma-anther height common floral morph in evolution heterostyly. Limonium aureum distylous species distributed desert northwest China, with (H-morph) widely natural populations, resembling classical homostyly. aim this study was to clarify whether occurrence H-morph also system, relationship between long-styled-/shortstyled-morph (L-/S-morph). morphs composition frequency, heterostylous syndrome, pollinators visiting efficiency were investigated five populations L. based on field observation, artificial control pollination experiment so on. All composed L-, S- H-morphs, except for ATS population only H-morph, there significant differences flower size parameter, fruit set, degree limitation, while no among within population. However, each demonstrated dimorphic pollen-stigma morphology strict especially population, they compatible morphology, regardless herkogamy, vice versa. It speculated different may be at stages evolution. without stage before distyly formation, other 4 after formation. caused separation shortening L- S-morph populations. These phenomenons independent physiological breakdown, as well coexistence from origins evolutionary have been reported first time Plumbaginaceae.

Language: Английский

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