Morphological variations in natural populations ofAmygdalus ledebouriana

doi:10.3724/SP.J.1003.2008.07338

Abstract

Abstract:

In order to investigate patterns of phenotypic trait variation in natural populations of Amygdalus ledebouriana, we measured eight morphological traits in five A. ledebouriana populations in Xinjiang. Rich phenotypic variation existed both among and within populations, and variation was greater within populations than among populations. Our UPGMA cluster analysis indicated that the five populations formed three distinct groups. We detected no relationship between geographic distance and Euclidean distance. Principal component analysis showed that shoot length/shoot width, leaf length/leaf width, mass per 1,000 seeds, seed length/seed width, and corolla diameter were the most important phenotypic traits that accounted for the morphological variation of A. ledebouriana.

Key words: Amygdalus ledebouriana, population, morphological variation

Bin Zeng, Shuping Luo, Jiang Li, Wenkui Nie, Feng Zhang, Hailong Li. Morphological variations in natural populations ofAmygdalus ledebouriana[J]. Biodiv Sci, 2008, 16(5): 484-491.

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URL: https://www.biodiversity-science.net/EN/10.3724/SP.J.1003.2008.07338

https://www.biodiversity-science.net/EN/Y2008/V16/I5/484

Figures/Tables 9

References 27

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居群编号 Population label	居群类型 Population type	采样地 Location	纬度 Latitude (N)/(^o)	经度 Longitude (E)/(^o)	海拔 Altitude (m)	年均温 Mean annual temperature (℃)	年降水量 Annual precipitation (mm)
布尔津 BRJ	纯林 Pure forest	阿尔泰山西南部山麓(布尔津县境内) Southwest region of Altay Mountains (within Buerjin County)	48^°11'	87^°06'	1,224	-3.6	117.8
哈巴河 HBH	稀疏灌丛林 Sparse shrub woods	阿尔泰山西北部孔敦林山麓(哈巴河县境内) The Kongdunlin area to northwest Altay Mountains (within Habahe County)	48^°18'	86^°34'	1,025	-3.8	141.9
塔城 TCH	杂果灌丛林 Sundry fruit shrubs	塔尔巴哈台山东部(塔城市境内) East region of Taerbahatai Mountains (within Tacheng City)	47^°03'	83^°01'	1,197	5.3	322.9
托里 TL	野果林 Wild fruit forest	巴尔鲁克山东部(托里县境内) East region of Baerluke Mountains (within Tuoli County)	46^°09'	83^°33'	870	6.9	485.7
裕民 YM	纯林 Pure forest	巴尔鲁克山西部(裕民县境内) West region of Baerluke Mountains (within Yumin County)	45^°54'	82^°30'	1,199	6.0	507.6

居群编号 Population label	居群类型 Population type	采样地 Location	纬度 Latitude (N)/(^o)	经度 Longitude (E)/(^o)	海拔 Altitude (m)	年均温 Mean annual temperature (℃)	年降水量 Annual precipitation (mm)
布尔津 BRJ	纯林 Pure forest	阿尔泰山西南部山麓(布尔津县境内) Southwest region of Altay Mountains (within Buerjin County)	48^°11'	87^°06'	1,224	-3.6	117.8
哈巴河 HBH	稀疏灌丛林 Sparse shrub woods	阿尔泰山西北部孔敦林山麓(哈巴河县境内) The Kongdunlin area to northwest Altay Mountains (within Habahe County)	48^°18'	86^°34'	1,025	-3.8	141.9
塔城 TCH	杂果灌丛林 Sundry fruit shrubs	塔尔巴哈台山东部(塔城市境内) East region of Taerbahatai Mountains (within Tacheng City)	47^°03'	83^°01'	1,197	5.3	322.9
托里 TL	野果林 Wild fruit forest	巴尔鲁克山东部(托里县境内) East region of Baerluke Mountains (within Tuoli County)	46^°09'	83^°33'	870	6.9	485.7
裕民 YM	纯林 Pure forest	巴尔鲁克山西部(裕民县境内) West region of Baerluke Mountains (within Yumin County)	45^°54'	82^°30'	1,199	6.0	507.6

性状 Traits	均方 (自由度) MS(df)			F
性状 Traits	居群间 Among populations	居群内 Within population	随机误差 Random errors		居群间 Among populations	居群内 Within population
叶片长宽比 Leaf length / leaf width	14.08(4)	1.83(145)	0.2794(1,350)	7.7049^**		6.5426^**
果核长宽比 Seed length / seed width	1.6548(4)	0.1125(145)	0.0090(1,350)	14.7147^**		12.5445^**
新梢长宽比 Shoot length / shoot width	33,666.04(4)	8,518.1(145)	551.27(1,350)	3.9523^**		15.4517^**
花冠直径 Corolla diameter (cm)	14.2236(4)	0.7508(145)	0.0845(1,350)	18.9443^**		8.8847^**
雄蕊个数 Stamen number	34.3993(4)	13.1754(145)	4.6227(1,350)	2.6109^*		2.8502^**
雌蕊长度 Gynoecia length (cm)	0.0339(4)	0.0136(145)	0.0024(1,350)	2.4829^*		5.7099^**
雄蕊长度 Stamen length (cm)	0.0870(4)	0.0260(145)	0.0064(1,349)	0.3347		4.0793
果核千粒重 Mass per 1,000 seeds (g)	2,454,223.25(4)	157,439.83(145)	672.80(1,350)	15.5883^**		234.0087^**

性状 Traits	均方 (自由度) MS(df)			F
性状 Traits	居群间 Among populations	居群内 Within population	随机误差 Random errors		居群间 Among populations	居群内 Within population
叶片长宽比 Leaf length / leaf width	14.08(4)	1.83(145)	0.2794(1,350)	7.7049^**		6.5426^**
果核长宽比 Seed length / seed width	1.6548(4)	0.1125(145)	0.0090(1,350)	14.7147^**		12.5445^**
新梢长宽比 Shoot length / shoot width	33,666.04(4)	8,518.1(145)	551.27(1,350)	3.9523^**		15.4517^**
花冠直径 Corolla diameter (cm)	14.2236(4)	0.7508(145)	0.0845(1,350)	18.9443^**		8.8847^**
雄蕊个数 Stamen number	34.3993(4)	13.1754(145)	4.6227(1,350)	2.6109^*		2.8502^**
雌蕊长度 Gynoecia length (cm)	0.0339(4)	0.0136(145)	0.0024(1,350)	2.4829^*		5.7099^**
雄蕊长度 Stamen length (cm)	0.0870(4)	0.0260(145)	0.0064(1,349)	0.3347		4.0793
果核千粒重 Mass per 1,000 seeds (g)	2,454,223.25(4)	157,439.83(145)	672.80(1,350)	15.5883^**		234.0087^**

性状 Traits	方差分量 Variance portion			方差分量百分比 Percentage of variance portion (%)				表型分化系数 V_st(%)
性状 Traits	居群间 Among populations ( $\sigma$² t/S)	居群内 Within population ( $\sigma$²s)	随机误差 Random errors ( $\sigma$²_e)		居群间 Among populations	居群内 Within population	随机误差 Random errors	表型分化系数 V_st(%)
叶片长宽比 Leaf length / leaf width	0.0408	0.1551	0.2794	8.58		32.63	58.78	20.83
果核长宽比 Seed length / seed width	0.00514	0.01035	0.009	20.99		42.26	36.75	33.18
新梢长宽比 Shoot length / Shoot width	83.8265	796.6831	551.2711	5.85		55.64	38.50	9.52
花冠直径 Corolla diameter (cm)	0.0449	0.0666	0.0845	22.91		33.98	43.11	40.27
雄蕊个数 Stamen number	0.0707	0.8553	4.6227	1.27		15.41	83.31	7.63
雌蕊长度 Gynoecia length (cm)	0.0001	0.0011	0.0024	2.78		30.56	66.67	8.33
雄蕊长度 Stamen length (cm)	0.0002	0.0020	0.0064	2.33		23.26	74.42	9.09
果核千粒重 Mass per 1,000 seeds (g)	15,311.89	31,353.41	672.79	32.35		66.23	1.42	32.81
平均 Mean				12.13		37.50	50.37	20.21